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外语单词网英语单词lanthanum的中文意思

lanthanum

英 ['lænθənəm] 美['lænθənəm]

n. [化学] 镧

英英释义

1. a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth

实用场景例句

Lanthanum praseodymium - cerium rare earth ( LPC ) was a patent composition.: 镧镨铈混合稀土 ( LPC ) 是新型专利成分的混合稀土.

Among the simplest are the lanthanum compounds of the form La?: 其中最简单的是la? 研问降娘缁0合物.

Description: Lanthanum Nitrate is soluble in water and moisture in wet air.: 说明: 硝酸镧溶于水,在潮湿的空气中易潮解.

Cerium showed more effective than lanthanum for vanadium tolerance of FCC catalysts.: 氧化铈较氧化镧更容易与钒反应,因而具有更强的抗钒能力.

Li - doped lanthanum chromite powders in stoichiometric proportions were prepared by sol - gel process.: 采用溶胶 - 凝胶法,按化学配比将锂元素掺入铬酸镧中制得粉末.

Nano - powder of lanthanum chromites were synthesized by low - temperature combustion method.: 用低温燃烧合成法合成了铬酸镧纳米粉体.

The rare earth lanthanum oxide doped molybdenum alloys containing different volume fraction lanthanum oxide particles werepowderprocessing.: 结果表明,稀土氧化镧掺杂钼合金由于其细小的氧化镧颗粒和细小的晶粒的作用而具有较高的屈服强度.

Objective To investigate the effects of lanthanum chloride on serum inflammation media in diabetic rats.: 目的探讨稀土三氯化镧对糖尿病大鼠炎症介质的影响.

The nanocrystalline AB _ 5 type rich - lanthanum rare earth hydrogen storage alloys were prepared by double - roller rapid quenching.: 用双辊快淬工艺制备了纳米晶AB_5型富镧稀土贮氢合金.

The dielectric properties and defect mechanism of lanthanum strontium - bismuth titanate ceramics arc discussed in the paper.: 研究了镧锶铋钛系陶瓷的介电性能与缺陷机构.

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.: 采用化学沉淀法制备了La2Zr2O7 ( LZ ) 和CeO2-La2O3-ZrO2(LCZ ) 陶瓷粉末.

A humidity sensor is fabricated with the composite material of nanometer lanthanum ferrite and the polymer.: 采用纳米铁酸镧与高分子复合材料制成湿敏元件.

Based on the band theory, the BCS mechanism of superconductivity is still valid for Lanthanum.: 通过能带理论分析肯定镧的超导机制仍是BCS机制.

The effect of lanthanum on electrochemical properties of zinc anodes ribbon was studied.: 研究了镧的加入对牺牲锌阳极带电化学性能的影响.

The standard solution is added lanthanum nitrate solution as much as the sample.: 标准溶液也同样品一样加入相同量硝酸镧溶液.

中文词源

lanthanum 镧

来自PIE*ladh,隐藏，词源同latent.因该元素发现之艰难而得名。比较dysprosium.

双语例句

1. Lanthanum praseodymium - cerium rare earth ( LPC ) was a patent composition.: 镧镨铈混合稀土 ( LPC ) 是新型专利成分的混合稀土.

2. Among the simplest are the lanthanum compounds of the form La?: 其中最简单的是la? 研问降娘缁0合物.

3. Description: Lanthanum Nitrate is soluble in water and moisture in wet air.: 说明: 硝酸镧溶于水,在潮湿的空气中易潮解.

4. The analysis of tilt boundary observed in lanthanum chromates was made.: 对观察到的铬酸镧倾斜晶界进行了分析.

5. Cerium showed more effective than lanthanum for vanadium tolerance of FCC catalysts.: 氧化铈较氧化镧更容易与钒反应,因而具有更强的抗钒能力.

英文词源

lanthanum (n.): metallic rare earth element, 1841, coined in Modern Latin by Swedish chemist and mineralogist Carl Gustav Mosander (1797-1858), who discovered it in 1839, from Greek lanthanein "to lie hidden, escape notice," from PIE root *ladh- "to be hidden" (see latent). So called because the element was "concealed" in rare minerals.

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