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tin相关的网络例句
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Tungsten ; tin ; rare metal ; discovery history ; Guangxi ; Gongchengcounty ; Limu

钨锡;钝钽;碱性花岗岩型矿床;发现;恭战栗木

The present invention relates to mercapto ethanol isooctanoate type organic tin compound and its preparation process and application.

本发明涉及异辛酸巯基乙醇酯型有机锡化合物及其制备方法和应用。

During preparation, mercapto ethanol isooctanoate, alkyl or ester tin chloride and organic solvent are first heated and refluxed while adding catalyst; organic layer is then obtained through separating liquid and decompression distilled; and through further steps, the compound is obtained. The synthesis process of the present invention is simple, and has conversion rate higher than 95 %, normal pressure and low reaction temperature, low power consumption and less pollution, and the prepared compound has high reaction activity and low toxicity.

制备时,将异辛酸巯基乙醇酯、烷基或酯基氯化锡和有机溶剂加热回流,同时加入催化剂,然后通过分液,保留有机层,再对有机层进行减压蒸等步骤制得所述化合物;本发明合成工艺简单,转化率大于95%,反应在常压条件下,反应温度低,从而降低了能耗,减少了污染,所制备的化合物具有反应活性高和毒性小的特点,使用安全。

MAN NARRA TIN G: There's a legend of a man who lives beneath the sea.

海底世界有个传说说那里住着一个男人

Nextly, theory and methods on constructing Regular Grids based on Various data sources are researched, and the interpolation algorithm - Smoothing Function interpolation arithmetic of interpolating Regular Grid DEM from Triangulated Irregular Network is improved.

研究了基于各种数据源建立规则格网DEM的理论和方法,详细分析并实现了从不规则三角网TIN到规则格网DEM转换的改进算法——磨光函数内插算法。

The effect of nickelous sulfate and hydrazine on thickness and appearance of electroless tin coatings were studies by electrochemical methods.

采用电化学等方法研究了硫酸镍和水合肼对化学镀锡层厚度及表面形貌的影响。

All the possibility of the nitridation reaction mentioned above was discussed thermodynamically.

以MCl〓、NH〓Cl和Na为原料,在500℃的温度和~8M Pa的压力下合成出8nm的TiN和14nm的VN纳米晶。

Studies of formation of titanium nitride layer with laser nitriding in a pure Ti in nitrogen atmosphere are described.

纯钛在氮气中通过激光氮化表面形成了TiN为主要增强相的表面涂层。

Both RTINs and general TINs are irregular in structure, allowing nonuniform sampling of the terrain.

这些RTIN和主要的TIN在结构中都是非规则的,是非均匀采样的地形。

The resules show that the optimal reaction conditions are as follows: tin octoate is used as catalyst; w(SnOct2)lw and w(nano-SiO2)/w is 1:400 and 1:20, respectively; the reaction temperature is 140 CC and the reaction time is 72 h. Under this conditions, composite withM of 1.5091×10^5 was obtained.

结果表明,最优的反应条件为:采用辛酸亚锡为催化剂,催化剂用量和二氧化硅用量分别为丙交酯用量的0.25%和5%,在140℃油浴中,氮气保护下反应72h,可得到重均分子量为1.5091×10^5的聚乳酸纳米二氧化硅复合材料。

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相关中文对照歌词
Tin Man
Tin Foil
Tin Foiled
Tin Roof Blues
Tin Man
Little Tin Soldier
Tin Angel
Tin Can On A String
Tin Cup Chalice
Tin Legs And Tin Mines
推荐网络例句

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了

The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.

世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。