| 释义 |
sa·mar·i·um 英səˈmeəriːəm, -ˈmær-美səˈmɛriəm, -ˈmær-AHDsə-mârʹē-əm, -mărʹ- COCA¹⁶⁶¹⁵⁶BNC²³⁶²¹³⁺¹iWeb⁵⁴²⁷⁰
基本英英词源搭配记法近义反义例句
n.化钐符号Sm;原子序为62简写符号Sm
Noun:
a grey lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite来自 samarkite,铌钇矿，-ium,金属元素后缀。samarium oxide氧化钐samarium dichloride二氯化钐samarium poisoning钐中毒
samar-ium生化名词⇒n.化钐符号Sm;原子序为62近义词 SM=master of …
A simple technique for preparation of powder binary fluorides activated with divalent samarium ions is described.
报道了合成二价钐激活的复合氟化物的简单方法。 cnki
Aziridine reacted with aromatic amines promoted by samarium trichloride the ring opening products of 1,2 diamines were obtained.
芳香族胺在三氯化钐催化下与环丙啶反应，得到了1，2-二胺类混合物； cnki
The availability of high performance magnets, like samarium cobalt and neodymium-boron-iron, has made it possible to improve the performance of brushless dc motors significantly.
高性能的永磁体如钐钴、钕铁硼的问世使得永磁无刷直流电动机的性能大大提高了。 fabiao
The application of samarium reagents in organic synthesis, including in reduction and carbon- carbon bond formation, as well as some catalytic effects are reviewed in this paper.
本文综述了钐试剂在有机合成中的应用，包括还原反应，碳-碳键形成反应以及催化作用。 cnki
The cyclopropanation reaction of ethylene with samarium(II carbenoid was studied by means of the B3LYP hybrid density functional method.
用密度泛函B3LYP方法研究了过渡金属钐类卡宾与乙烯的环丙烷化反应的机理。 cnki
A Fibrinolytic enzyme was purified from the cultured mycelia of Lyophyllum samarium by ion exchange chromatography followed by gel filtration and fast protein liquid chromatography.
采用离子交换层析、凝胶过滤层析及快速蛋白液相色谱等蛋白质分离纯化技术，从榆干离褶伞菌丝体中分离纯化了一种溶栓酶。 dictall
After injection of samarium nitrate the weight of mice increased slowly, and organ coefficient of kidneys was significantly lighter than the control group P0.05.
小鼠染毒后体质量增加缓慢，肾脏脏器系数明显地低于对照组 P0.05； cnki
But rather than test the radioactive decay using just one method, the researchers used three, involving the elements lead, samarium and neodymium.
但是，相对于仅使用一个方法测试放射性衰变，研究人员测定时使用了三种元素，铅，钐，钕。 yeeyan
Most famously, uranium-238 decays into lead-206 with a half life of4.5 billion years, though radioactive rubidium and samarium are also useful for dating things billions of years old.
最为有名的就是铀-238衰变为铅-206的半衰期为45亿年，当然放射性铷和钐也同样对测算几十亿年前的物体的年龄很有用。 ecocn
Researchers collected rocks and measured minute isotopic variations in rare earth elements called neodymium and samarium.
科学家收集了岩石样本，并测定了稀土元素钕和钐的微小的同位素差异。 hjbbs
SmCo magnet is a high performance , low temperature coefficient permanent magnet made of samarium and cobalt and other rare- earth elements.
钐钴磁铁主要由金属钐、钴和其它一些席土元素构成的永久磁铁。 chemyq
The paper reports the measurement of78 high-lying levels in samarium atoms by two- colour three- photon resonant ionization.
本文报道用双色三光子共振电离法测量钐原子高激发态78个新能级。 cnki
The second one describes the reductive elimination reactions promoted by samarium reagents.
第二章研究了二碘化钐促进的还原消除反应； cnki
Two technological process of samarium fluoride prepared by wet methods-one is a traditional technique and another is a new method of ammonium bicarbonate conversion.
本文研究了湿法制备氟化钐的两种工艺过程——传统工艺和碳酸氢铵转型新工艺。 chemyq
Samarium and manganese co-doped zinc borosilicate storage glasses were prepared by high temperature solid state method.
使用高温固相法合成了钐锰共激活的硼硅锌玻璃。 chemyq
Samarium, Samarium Metal, Metal Samarium.
钐，金属钐，钐金属。 sinomaterial
Samarium salicylate is synthesized by the rheological phase reaction method.
用流变相合成了水杨酸钐。 dictall |