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In this paper different concentrations of iron boride powders were put into the iron - based metal catalyst to get different kinds of boron-doped diamonds with high thermal stability under high temperature and high pressure conditions.

本文在铁基触媒的基础上加入不同含量的硼铁粉，用静压法合成了含硼金刚石。

The air was first passed through an ethylene glycole bubbler to remove HTO, then, over a heated catalyst for oxidizing HT gas to HTO which was collected in second ethylene glycol bubbler.

空气先通过一个乙二醇鼓泡吸收器以除去HTO，再通过加热的催化剂，使HT气体氧化为HTO，然后被第二个乙二醇鼓泡吸收器捕集。

The effects of acidity, reaction temperature, feeding mode, and rotational speed of the stirrer on the particle size of AC blowing agent were studied. The optimal conditions were obtained as follows: the catalyst composed with m:m(V2O5)=1:1 equal to 1%-2% ratio of the reagent''s mass,reagent reacts at 50℃ under pH=3-4 for 25min with 350～360r/min of the stirrer speed, and the NaClO3 solution must be added from burette.

研究了酸度、反应温度、加料方式、搅拌器的转速对AC发泡剂粒径的影响，最佳工艺条件为：催化剂m：m(V2O5)=1：1的质量约为反应物质量的1%~2%，反应体系的pH值3～4，反应温度控制在50℃左右，氯酸钠溶液(质量分数20%)采用通管滴加的方法加入，整个反应时间约为25min，搅拌器的转速一般控制在350～360r/min。

The polymerization of butadiene in benzene in the presence of titanium tetraiodide triisobutyl aluminium catalyst has been studied.

研究了丁二烯在苯中有四碘化钛-三异丁基铝催化剂的存在下的聚合。

The coke formation on butadiene catalyst was studied in a flow system by means of carbon-14-labelled compounds.

在流动系统中，用碳-14标记化合物研究了丁二烯催化剂上的结焦过程。

Thd polymerization of butadiene in benzene in the presence of titanium tetraiodide triisobutyl aluminium catalyst has been studied.

研究了丁二烯在苯中有四碘化钛-三异丁基铝催化剂的存在下的聚合。

The asymmetric transformation of L-Pro via the formation of salt with S-tartaric acid was carried out by butanal as catalyst and butanoic acid as solvent to obtain D-Pro · S-TA salt.

实验研究了L一Pro的消旋反应，并获得刀乙一脯氨酸，然后在消旋的基础上研究L一Pro的不对称转换，最后得到D一Pro。

Etherification of butanol with ethylene oxide by a new style solide acid catalyst is investigated.

研究了丁醇和环氧乙烷在一种新型固体酸催化剂上的醚化反应。

The influences of reaction temperature, ratio of citric acid to butanol, and the mass of catalyst on esterification performance were emphatically studied.

采用正交实验考察了反应温度、催化剂用量、酸醇摩尔比对柠檬酸转化率的影响，得出最佳反应条件为：反应温度120℃、催化剂用量为总物料质量的1.5%、酸醇摩尔比1：4。

The catalyst also showed very good activity to the isomerization of n-pentane and esterification of phthalic anhydride with butanol.

用正戊烷的异构化反应和苯酐／正丁醇酯化反应作为探针，考察了SO〓／Zr—HMS的催化性能。

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％。