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单词 Lanthanum
例句
1. The lanthanum can incrcase the hardness of the alloys.
2. Lanthanum - tungsten electrode is the substitution product of thorium - tungsten electrode because of its freedom from radioactivity.
3. Objective To investigate the effects of lanthanum chloride on serum inflammation media in diabetic rats.
4. The nanocrystalline AB _ 5 type rich - lanthanum rare earth hydrogen storage alloys were prepared by double - roller rapid quenching.
5. Lanthanum zirconate ( La 2 Zr 2 O 7 , LZ ) and CeO 2 - La 2 O 3 - ZrO 2 ( LCZ ) composite ceramic powders were prepared by the chemical precipitation.
6. Objective To explore the effect of lanthanum subchronic exposure on peripheral blood cells index in rat models.
7. Among the simplest are the lanthanum compounds of the form La?
8. The effect of lanthanum on electrochemical properties of zinc anodes ribbon was studied.
9. Amine - pillared lanthanum niobates with different chains length as pillars were characterized with XRD, TG and DSC.
10. They conclude: "Lanthanum carbonate remains safe and effective for treating phosphatemia in stage 5 CKD patients."
11. Description: Lanthanum Nitrate is soluble in water and moisture in wet air.
12. The extraction mechanism and separation process of lanthanum and actinium were studied in HDEHP ( kerosene ) NO 3 system.
13. By colloidal lanthanum tracing and transmisson electron microscopy technique, alteration of cochlea was observed.
14. Li - doped lanthanum chromite powders in stoichiometric proportions were prepared by sol - gel process.
15. The praseodymium and neodymium may probably separate from lanthanum, samarium, europium and ytterbium in lithium sulfosalioylate electrolyte.
16. The Oxides, Salts and Metal of the Lanthanum, Cerium, Praseodymium, Neodymium, Samarium, Europium, Gadolinium, Terbium, Dysprosium , Holmium, Erbium, Thulium, Ytterbium, Lutetium, Yttrium, Scandium.
17. 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.
18. Objective Study of the influences of lanthanum, cerium and fluoride on the activity of glucosyltransferase (GTF) and adherence of oral cariogenic bacteria.
19. The rare earth lanthanum oxide doped molybdenum alloys containing different volume fraction lanthanum oxide particles werepowderprocessing.
20. Nano - powder of lanthanum chromites were synthesized by low - temperature combustion method.
21. Methods Samples were assayed by acetylene - air flame AAS using releasing agent lanthanum chloride.
22. Used to make petro- chem catalyst. Also used to manufacture lanthanum metal.
23. Lanthanide: Any of the series of 15 consecutive chemical elements in the periodic table from lanthanum to lutetium (atomic numbers 57-71).
24. The crystal structure and some defects such as tilt boundary and dislocation of lanthanum chromates were investigated by high resolution microscopy (HERM).
25. A humidity sensor is fabricated with the composite material of nanometer lanthanum ferrite and the polymer.
26. Battery producers for electrical cars using praseodymium neodymium and lanthanum also felt the pain of rising costs.
27. The said tombarthite is one of the kinds such as lanthanum, europium nitrate, erbium nitrate,() cerous nitrate and neodymium nitrate.
28. However, 10% of it was a reddish-brown mineral called bastnaesite—a phenomenally rich source (by rare-earth standards) of cerium, lanthanum, neodymium and other members of the lanthanide family.
29. In this paper, the main research object is the alkali metal sodium, potassium, sodium and rare earth elements neodymium doped binary compound doped lanthanum manganese ceramic.
30. The composity, solubility, IR spectra, autoignition temperature and decomposition temperature of urushiol lanthanum chelate were determined.
31. The results of calculation show that the bonds between lanthanum and coordination atoms have certain extent covalency.
32. Lanthanum praseodymium - cerium rare earth ( LPC ) was a patent composition.
33. Based on the band theory, the BCS mechanism of superconductivity is still valid for Lanthanum.
34. He called lanthanum carbonate "a helpful addition to our armamentarium."
35. Lanthanum nitrate block impregnation technic was used to demonstrate the neurocyte membrane permeability in the animal model of acute cerebral ischemia and reperfusion.
36. Yet another rare earth metal, lanthanum, is a major ingredient for hybrid car batteries.
37. The analysis of tilt boundary observed in lanthanum chromates was made.
38. Cerium showed more effective than lanthanum for vanadium tolerance of FCC catalysts.
39. The dielectric properties and defect mechanism of lanthanum strontium - bismuth titanate ceramics arc discussed in the paper.
40. The experimental results showed that nanometer sized lanthanum oxide could catalyze the decomposition reaction of NC/NG effectively. The mechan...
41. The extraction mechanism and separation process of lanthanum and actinium were studied in HDEHP ( kerosene ) - HNO 3 system.
42. Performance of cerium salt passivating film was similar with that of chromating film. And lanthanum, praseodymium salt passivating was superior than molybdenum salt.
43. Objective To evaluate the remineralization effect of milk with lanthanum, milk with fluoride and milk with calcium on artificial enamel caries.
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44. The results show there is structure modulation in lanthanum chromates and the model of long-range order structure is built up.
45. Rare earth metal: Any of a large class of chemical elements including scandium (atomic number 21), yttrium (39), and the 15 elements from 57 (lanthanum) to 71.
46. The influences of triethylamine amount, surfactant, reaction temperature and time on the size and shape of lanthanum hydroxide nanorods were investigated in detail.
47. In the second part of the dissertation, the preparation and electrochemical properties of lanthanum cobaltite nano-materials and rare transition metal cobaltites were studied.
48. The standard solution is added lanthanum nitrate solution as much as the sample.
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