查询词典 methanol

The effect of methanol, formic acid and aqueous ammonia as nucleophiles on the ring cleavage of 1 was investigated.

8%文献值，首次采用低碳液态醇实现 1 的开环反应，产物为 FOX-7。

The results indicate: With the curing temperature of the epoxy resin (E-20) and methanol etherified amino resin at 130℃ and the curing time from 15 minutes to 20 minutes, the curing product owned better curing result, higher tensile strength and best peel properties.

结果表明：环氧树脂(E-20)/甲醚化氨基树脂体系固化温度在130℃，固化时间15~20min，固化效果较好，拉伸性能较高，剥离性能最好。

Mass Spectrometry and quantum chemistry ab initio method have been used to study the reactivity of the methanol dehydration.

利用质谱分析结果结合量子化学ab initio方法，研究甲醇缩合脱水的反应过程。

Methods A Diamonsil C18 colum (5 μm, 250 mm×4.6 mm) was used by using methanol?

采用Diamonsil C18色谱柱(5 μm，250 mm×4.6 mm)，以甲醇？

By using the Nernst equation and measured electromotive force data,the corresponding mean activity coefficients of KI and interaction parameters were obtained.The weak association of KI in methanol was discussed.

研究较多的是利用离子选择性电极与电解质溶液组成无液接电池，测定对某一电解质响应的电动势数据，由此从电动势出发可以关联得到电解质溶液活度系数的Pitzer方程或其它方程的参数，进而得到电解质溶液的活度系数[1]。

There are two adsorption states of methanol on Lewis acid sites of the catalyst, i.

二甲醚的生成是分子吸附态甲醇与临近的解离吸附态甲醇相互作用的结果。

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％。