查询词典 rare earth metal

On this base ,the carrier of the rare-earth metal and oxidized lead is sleeted according to chinds special characteristic and exhaust purifying box in multi-use experiment was designed .

在此基础上，结合我国国情选用了稀土催化剂、氧化铝载体，设计了复合式试验用尾气净化消声器。

X-ray photoelectron spectroscopy was used to analyze the composition of rare earth metal conversion coating.

研究出pH缓冲剂A和辅助添加剂B延长了处理液的使用寿命并提高了转化膜的结合力。

Each rare earth metal has unique properties, applications and markets.

每种稀土金属都拥有独特的性能、应用和市场。

The catalytic activities of other rare earth metal salts with different ligands were tested.

考察了带有不同配体的稀土金属催化剂对反应的影响。

The effect of addition of rare earth metal Er on the microstructure and mechanical properties of Ti based cermets is studied.

研究了添加稀土金属Er对Ti基金属陶瓷结构和力学性能的影响。

Rare earth metal oxides play a special active role in the process of laser radiation.

稀土金属氧化物在激光辐照过程中具有独特的&活化&作用。

The polymerization mechanisms of DTC, TMC and CL initiated by Ln 〓 were fully studied for the first time, and proved to be a"coordination insertion anionic mechanism". Monomer coordinated to rare earth metal on the carbonyl group, and opened ring via acyl-oxygen bond cleavage, forming a growing chain.

本文首次研究了Ln〓引发DTC、TMC和CL聚合的机理，证实都符合&配位插入阴离子机理&：单体首先以环外羰基和引发剂中稀土原子配位，并发生羰基加成，随之通过酰氧键断裂开环而插入到Ln-O键中实现链引发，然后各单体重复上述稀土原子参与的配位、加成、开环、插入聚合步骤，活性链在Ln-O端增长。

The effect of rare earth metal yttrium on the microstructure, chemical composition, hardness, and wear resistance of vacuum fusion sintered Ni-based coatings was studied.

研究了稀土金属Y对真空熔结Ni基合金涂层显微组织及化学组成、硬度和耐磨性的影响。

In order to increase the peak depth of nitrogen atoms during the nitrogen plasma ion implantation of Ti-6Al-4V alloy, the rare earth metal yttrium was used to increase the implantation and diffusion depth of nitrogen atoms. In the experiment, the yttrium ions were implanted under the voltage of 20 kV firstly, and then the nitrogen ions were implanted under 30 kV.

为了提高氮离子体浸没离子注入Ti-6Al-4V合金时氮原子的峰值深度，利用钇来增加氮在基体中的注入深度和扩散深度，先用20 kV的电压进行钇离子体浸没离子注入处理，然后用30 kV的电压进行氮离子体浸没离子注入处理。

WANG Lang-ping, TANG Bao-yin, WANG Xiao-feng, WANG Song-yan, LIU Ai-guo, TIAN Xiu-bo (National Key Laboratory of Advanced Welding Production and Technology, Harbin Institute of Technology, Harbin 150001, China)Abstract: In order to increase the peak depth of nitrogen atoms during the nitrogen plasma ion implantation of Ti-6Al-4V alloy, the rare earth metal yttrium was used to increase the implantation and diffusion depth of nitrogen atoms. In the experiment, the yttrium ions were implanted under the voltage of 20 kV firstly, and then the nitrogen ions were implanted under 30 kV.

为了提高氮等离子体浸没离子注入Ti-6Al-4V合金时氮原子的峰值深度，利用钇来增加氮在基体中的注入深度和扩散深度，先用20 kV的电压进行钇等离子体浸没离子注入处理，然后用30 kV的电压进行氮等离子体浸没离子注入处理。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。