1. Yet another uses fluorine as the reactant.

2. This technique has been used for uranium, copper, fluorine and other relatively soluble elements.

3. Thus, the content of fluorine and uranium in buried bone gradually increases, and can be measured in the laboratory.

4. Fluorine carbon coating of our country is fast growing.

5. The fluorine does not accumulate indefinitely in the water.

6. A New Fluorine - containing Polymer Dispersant Synthesis.

7. It is a compound of aluminum, silica, and fluorine.

8. A binary compound of fluorine with another element.

9. Contain fluorine toothpaste after all whether well or not?

10. A large proportion of the fluorine is vaporized during the concentration process.

11. Lyons of liquid state fluorine , can send skin frostbite.

12. The higher the fluorine content in the fluxes was and the longer the soak time of the fluxes in the water was, the more the fluorine would transfer into the water.

13. Usually fluorinated copolymer unit, said the number of fluorine atoms, such as fluorine rubber, 23, is a vinylidene fluoride copolymers with chlorotrifluoroethylene.

14. Metallic calcium also burns in fluorine gas, forming the fused fluoride, and occasionally minute crystals of fluorspar .

15. The content of free fluorine in toothpaste by potentiometry with a fluorine ion selective electrode is determined.

16. The fluorine ion sensitive field-effect transistor (F-ISFET) is made by depositing very thin LaFs film on grid of field-effect transistor with sputter method.

17. If the fluorine content is high, it may increase plant corrosion.

18. Inhibitory Experiment of Chlorothalonil and its fluorine containing derivative against oryzae were carried out.

19. Like the rate of decrease in nitrogen, the rates of increase in fluorine and uranium depend strongly on local factors.

20. Therefore, the water suspension can be the development direction that butylene fluorine preparation processes in future.

21. A dual absorbing tower shower containing oxidant and alkaline absorbant was used for removing arsine, phosphorus, sulfur, fluorine, chlorine and oxynitrides.

22. Presumably both the very small size and activating influence of fluorine atoms contribute to this exception.

22. try its best to collect and create good sentences.

23. Diaphragm under different liquids were used NBR, chloroprene rubber, fluorine rubber, PTFE, poly ethylene 46.

24. Porous analcite balls are prepared by analcite rocks andand then are used to removing fluorine.

25. The system, made by Linde, splits hydrogen fluoride into fluorine.

26. The kinetics curved lines of chlorinating rate on chlorinating rare earth of Weishan mid-grade bastnasite in Shandong after fixed fluorine were determined.

27. The results show that the hydrogen of C—H bond on ACFs were substituted by fluorine at different condition. The C—F covalence bond was built at molecular level.

28. Lead or annealed copper washers are most often used in fluorine and other reactive fluoride service.

29. Liquid hydrogen is used in large volumes in the space program as a primary rocket fuel for combustion with oxygen or fluorine, and as a propellent for nuclear powered rockets and space vehicles.

30. A serviceable method of determining mulberry leaf fluoride with a Fluorine ion counter was studied, two sample prepared methods to determine influence of result was probed.

31. Fluorine containing aniline resin was synthesized by polycondensation of 2 TriFluoromethyl aniline with formaldehyde.

32. According to the trait of rocket propellant a kind of protective gloves made of composite fluorine rubber is developed which can be used to protect the skin of red fuming nitric acid worker.

33. Fluorinated diamond-like carbon (a-C: F) films with different fluorine content were grown on silicon (100) substrate by pulse filtered cathodic vacuum arc source technology (FCVA).

34. The prevalence of dental fluorosis of the children drinking low fluorine water was no difference no matter whether using fluoride dentifrice or not.

35. In order to reduce the expense of fluorine production, carbon electrode is applied to producing fluorine by moderate temperature electroanalysis.

36. Lixiviation is chief geochemistry action to control fluorine content undergo very long geological age.

37. The source and control of fluorine in edible betel nut.

38. The structure of floating multicavity mold for fluorine rubber was stated.

39. Production process: after casting, extrusion, tinting, electrophoresis, powder coating, fluorine carbon spraying, mould, polishing, wood, metal wiredrawing, such extrusion.

40. MorpheusObstacle person can choose chloric nitrogen smooth, chlorpromazine , Taierdeng, mellow flesh of Ding of Pai of usable also fluorine is noted.

41. An investigation was Conducted within a brickkiln and the fruit trees around it in order to understand the fluorine pollution from the brickkiln .

42. Tooth paste with fluorine can effectively guard against tooth decay.

43. Dental fluorosis distributes all over the world. The main cause of it is overdose of fluorine.

44. It indicates that they have need to sorb different amount of fluorine.

45. The fluorine content in cleaned coal will be nearly same as its original matrix by two grade defluorination treatment.

46. Pitch fluoride powders were prepared through the reaction between mesophase pitch grain and fluorine gas in rotative nickel reactor.

47. The test results show the following order of soil types as regard to the soluble fluorine contents from high to low: Shajiang dark soil, Yellow brown earth and Purple soil, Paddy soil, Limy soil.

48. Fluorine is an important trace bio-essential element. Its deficiency or excess related to geological setting can cause organism distortion or supersession abnormality.

49. In the paper, the test results about fluorine retention in the alkaline-earth metal compounds combustion were studied to develop high-efficient fluoride retention additive.

50. Objective:The research niter benzene puts down to the recovery period fluorine acetamide is poisoned patient's electroencephalogram influence.

51. Structure Fluorine perchlorate should be analogous to perchloric acid, but with the replacement of the lone hydrogen atom with an atom of fluorine.

52. Fluorine fights tooth decay.

53. The healthy ingredients of tea: important functional ingredients in the tea include: fluorine, caffeine,[http:///fluorine.html] and acacatechin.

54. Fluorine containing finishing agents, featuring excellent hydrophobic and oleophobic performance are good finishing agents used to treat textile, leather, paper and other substrates.

55. Commonly used androgen preparation has hydroxide of ketone of third acerbity spermary, fluorine methylic spermary element, 2 methyltestosterone, go inside hydrogenous Gao ketone ester.

56. The fluorine content in the residue of acid lixivium is a constant. These factors should be taken into account when the limits is laid down for fluoride exposure and fluorine levels in foodstuff.

57. The absorbability and resistance of various trees are different to fluorine.

58. Corn is the staple food, and chili is the favorite vegetable in the coal-burning endemic fluorosis areas. Fluorine in corn can be totally extracted by acid lixivium by once.

59. The determination of fluorine in phosphatic ore by electrode method was presented.

60. The high fluorine content groundwater was resulted by the complicated geophysics and geochemistry causes.

61. Products and Prossing Application: Fluorine and silicone coating, Fluoroplastic, Fluorine elastomer, Anticorrosive equipment, etc.

62. This paper reports a case of hydrofluoric acid burn complicated inhalation injury and serious fluorine toxicosis.

63. Although all plants normally contain fluorine, the concentration varies greatly.

64. Fluorine, one of the necessary trace elements of human beings is presented in the forms of inorganic and organic compounds in foods, such as sodium fluoride, silicon fluoride, and fluoroacetate etc.

65. Using a kind of fluorine polymer and HDI trimer to reinforce and conserve the paper documents was studied.

66. Nowadays the world authorities deal with the monitoring of multiple fluorine alkyl phosphate increased interest in.

67. Fluorine contents in grains of Xuzhou epidemic fluorosis area range between 0.

68. The silicon and fluorine rubber with high temperature resistance, low compression permanent deformation, and high tear strength properties can meet the water sealing gasket requirements.

69. ObjectiveTo study the effect of fluorine on the amelogenin gene expression of mus musculus incisors.

70. In recent years, fluorine Pai acid and sulphanilamide medicine combine application, clinical result is satisfactory.

71. The synthetic methods of modified acrylate latices with organic silicon compounds, epoxy resin, polyurethane, organic fluorine compounds were reviewed.

72. Those with transmission power below 3 kw adopt full fluorine structure.

73. Based on this, a new method to determine the fresh leaf with Fluorine ion counter directly was set up.

74. In medical industry, it is used in the production of cephalosporin V, sulfanilamide -6- methoxamine pyrimidine, fluorine pyrimidine.

75. The fatigue life decreased in neutral solution, and increased in base solution with pH12. The conversion film containing fluorine can hardly improve the fatigue life.

76. Conclusion Fluorine possibly damages the male reproductive system by reducing the expression of TERT and PCNA.

77. Objective To study the effect of fluorine on the ameloblastin gene expression of mouse mus musculus.

78. The results show that the herbicidal activity decreases as the hydrogen atoms of the alkoxy group at 4 position of the pyrimidine ring are substituted by alkyl, alkoxy groups or fluorine atoms.

79. Fluorine and hydrogen fluoride in a mixed gas, HF -- F _ 2 -- Ar ahd F _ 2 -- HF -- N _ 2, have been determined.

80. The addition of a fluorine a drinking water supply for the purpose of reducing tooth decay.

81. The fluorine mixed gas prepared by this device, which may prolong the working hours of excimer-laser 2 to 3 times and prolong the average useful time of lens of laser 3 to 5 times.

82. The neutralization - hydrolysis process of the antimony trichloride solutions containing fluorine is investigated.

83. The high content of fluorine is closely related to the mixed-layer minerals of illite and smectite, apatite, hornblende [sentencedict .com], and K-feldspar.

84. What effect does sanded star of left oxygen fluorine have?

85. Fluorosurfactants basically consist of chains of carbon atoms surrounded by fluorine.

86. Sealing Material : O - shape or U - shape seal ring; butadiene acrylonitrile rubber, fluorine rubber.

87. Results:Two different concentrations of fluor protectors released certain amount of fluorine through the nine days period.

88. Through analysis to the goiter, the Keshan disease, the fluorine spot tooth and the endemic disease and so on, this paper tries to explain the relations between the geographical environment and t...

89. The kinetics on chlorinating the rare earth of Baotou rare earth mixed concentrate after fixed fluorine treatment was determined.

90. Nitro-4-fluoro amino-benzene is a kind of aromatic fluorine compound, it is the material on synthetic fluoro-medicine.