The paper reports the measurement of 78 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。
This paper reports reductive reaction of the thiocarbamic esters with samarium diiodide to give disulfidesand carboxamides in good results.
报道在二碘化钐作用下,硫代氨基甲酸酯发生还原反应,得到较好产率的二硫醚和酰胺化合物。
The source, influence and control of the impurity elements in samarium are described in this paper.
本文在实验的基础上论述了钐中杂质的来源,影响及控制方法。
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。
In chapter one, at first, we simply outlined some reactions promoted by samarium diiodide in recent years.
第一章,首先我们综述了近几年来二碘化钐促进的有机反应在有机合成中的应用。
Most famously, uranium-238 decays into lead-206 with a half life of 4.5 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。
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。
The variety includes: Fang Xing, permanent magnetism ferrites, ferro-aluminum boron strong magnetism, rubber magnetism, samarium cobalt magnetism, magnetic product and soon.
品种有:等方性、异方性永磁铁氧体、铝铁硼强磁,橡胶磁、钐钴磁、磁性制品等。
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。
One isotope of neodymium is formed from the decay of a samarium isotope that existed only at the beginning of the solar system.
有一种钕元素是在太阳系形成初期经过钐的衰变形成的。
The over-molded package, holds together a samarium cobalt pellet, a pole piece and a true zero-speed Hall IC that has been optimized to the magnetic circuit.
在超模压封装,拥有一个共同钐钴颗粒,极片和一个真正的零速霍尔IC进行了优化的磁路。
The device consists of a single-shot molded plastic package that includes a samarium cobalt pellet, a pole piece , and a Hall effect IC that has been optimized to the magnetic circuit.
该装置由一个单桿模压塑料封装,包括一个钐钴颗粒,一极片和霍尔效应集成电路已优化的磁路。
The source, influence and control of the impurity dements in samarium are described in this paper.
本文在实验的基础上论述了钐中杂质的来源,影响及控制方法。