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单词 Strontium
例句
1. Electricity produced by radioactive isotopes, strontium 90, polonium 210, by thermoelectric energy conversion.
2. Strontium can avoid cancellous bone and cardiovascular disease.
3. Strontium aluminate long persistence phosphors were prepared through homogeneous precipitation method.
4. The results showed that hygroscopic water content of strontium nitrate could be decreased by coating with nitrated cellulose and fluororubber, and the ignition ratio of primer could be increased.
5. Method Strontium 90 contact therapy was introduced among 26 infants with skin hemangiomas.
6. In this paper , strontium lead titanate strontium lead titanyl oxalate tetrohydrate by chemical coprecipitation.
7. New type of strontium aluminate shone coating has excellent light stability, which can be used outdoors.
8. The Strontium isotope composition of marine autogenetic minerals can reflect the sea level fluctuation trend during the minerals deposited.
9. Strontium Chemical element, one of the alkaline earth metals, chemical symbol Sr, atomic number 38.
10. Kai - tai strontium production companies are characterized by small size of the component tag.
11. The results indicated that rodlike and linear superfine strontium carbonate particles were prepared respectively by adding different crystal shape controlling agents with proper quantity.
12. Strontium cobaltite, however, is hardly used in the environmental protection.
13. Porous ceramic materials on the base of strontium zirconate were developed with zirconium dioxide, baddeleyite powder, and granular polystyrol.
14. Using organic salts of strontium and barium with titanium butoxide as precursors, the solution of Sr -modified BaTiO3 were prepared successfully.
15. A mixture of potassium chlorate, sugar and strontium nitrate produce red flames when ignited.
16. Some problems and suggestions for determining strontium are pointed out simultaneously.
17. The obtained strontium titanate powder has high purity, completely developed crystal grain and small granularity, and can meet the requirement for use in electronic ceramic field.
18. Potassium turns into argon, uranium into lead, rubidium into strontium.
19. Ferrite, the low-cost non-cobalt material made of ferric oxide and barium or strontium carbonate, was launched in the 1950s.
20. Other less toxic or benign metals such as calcium, magnesium, and strontium are also efficiently dissolved.
21. For example, the origin of ivory can be identified by its strontium isotopic composition, which reflects the diet of the elephant.
22. Facts have proved that the adsorption of yeast Tween-20 strontium really do have a positive impact.
23. In the present paper, the first experiments that restrained segregation of the casting of high leaded bronze by means of modificator consisted of lithium chloride or strontium chloride is reported.
24. Comparing with X-ray spectrum, sulfur state and content in strontium ore waste slag is got by the barium sulphate method and iodometry with only 0.37% of deviation.
25. The resource status of celestite in China is introduced. The main uses, technology, capacity, quality and price of the industrial strontium carbonate in China are analyzed.
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26. Especially, the effect while adding EDTA and cerium nitrate to prepare rodlike and linear strontium carbonate particles respectively was the best.
27. An aluminum silicon die cast alloy having a very low iron content and relatively high strontium content that prevents soldering to dies into die casting process.
28. Fettite magnets are made through powder metallurgy by mixing barium or strontium with Fe 2 O 3.
29. Measurement of radioactivity in the environment-Soil. Part 7 : methodology for strontium 90 activity measurement in soil samples.
30. The experimental results indicate that polyepoxysuccinic acid has excellent scale inhibiting performance to barium sulphate and strontium sulphate.
31. The determination of chloride in industrial strontium carbonate by turbidimetry with spectrophotometer is described.
32. The preparations of ultrafine strontium carbonate particles with various shapes were reviewed.
33. We use an ion chromatograph ( reagent free ) to test for nitrates, calcium and strontium.
34. Using an atomic force microscope and two layers of insulators (lanthanum aluminum oxide and strontium titanium oxide), Levy and his colleagues created a nanoscale transistor.
35. Reason: cesium 137 and strontium 90, two radioactive particlesspewed by the blaze, decay very slowly.
36. Ferrite magnets are sintered permanent magnets composed of Barium or Strontium Ferrite.
37. Due to its excellent pyroelectric, electro-optic and photo-refractive properties, strontium barium niobate (SBN) is one of the most potential lead-free ferroelectric materials.
38. Determination of trace strontium in underground water with Tribromoarsenazo Photometric Analysis is easy , quickly and accurately.
39. With the increasing concentration of Tween-20, the amount of strontium adsorbed yeast also increased.
40. Liquid method is preferable in preparing barium strontium titanate powders with high performance.
41. Our company is China Association of barium strontium salts branch members, is the biggest barium hydroxide and barium salts production of export trading enterprises.
42. The removal of strontium from HLW (high-level radioactive waste) with the extraction by dicyclohexano-18-crown-6 (DC18C6) in 1-octanol has been investigated.
43. With different concentrations of Tween-20 in the culture solution with the concentration of strontium, centrifugal.
44. METHODS Strontium ranelate was synthesized from citric acid via decarboxylation , esterification, cyclization, alkylation, hydrolysis and salification.
45. Strontium barium niobate ( SBN ) ceramic is a good electro-optic material and has been widely used.
46. CONCLUSION: The strontium containing calcium phosphate cement possesses excellent biocompatibility.
47. With hybrid strontium titanate ( BST ) ferroelectric detectors lowering cost, the markets were exploding.
48. When a fuel assembly comes out, highly radioactive fission products such as strontium 90 and cesium 137 are generating tens of kilowatts of heat.
49. Objective To observe the effect of Strontium 90 stick therapy on skin hemangiomas of infants and sum up nursing points.
50. Methods of preparing nanometer strontium carbonate with high purity are also reviewed.
51. The dielectric properties and defect mechanism of lanthanum strontium - bismuth titanate ceramics arc discussed in the paper.
52. Weekly testing for ammonia, nitrite, nitrate, turbidity, iodide, and strontium.
53. Reduction - metathesis method for preparation of strontium carbonate from celestite is developed.
54. A mixture of potassium chlorate, sugar and strontium nitrate produces red flames when ignited.
55. Fluoride and strontium has special affinity and influence on bone stabilization.
56. Radioactivity such as that of strontium 90 causes health problems in people even at low levels.
57. The alkaline-earth metal strontium is the smallest element in abundance for the silver-white soft metal.
58. In addition to iodine and caesium,(http:///strontium.html) Thailand is also looking out for Strontium 90.
59. In this paper, strontium lead titanate was prepared from strontium lead titanyl oxalate tetrohydrate by chemical coprecipitation.
60. The technology and mechanism of solution chemistry of preparation of strontium carbonate by double decomposition from celestite concentrate were investigated.
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