查询词典 purification

Ionone was synthesized from Litsea cubeba oil and lemen oil ,and condition of condensation,cyclization and purification of product was studied.

以山苍子油、柠檬草油为原料合成紫罗兰酮，研究了缩合反应、环化反应、产品精制的工艺条件；并缩合反应中，柠檬醛的转化率为99%以上，产品得率95%；环化反应中，假性紫罗兰酮的转化率98%以上，产品得率90%。

Objective To explore a simple and rapid method for the isolation and purification of minipig islet cells.

目的 探索一种简单快速分离纯化小型猪胰岛的方法。

The absorption and purification of lead pollutants in air by sophora japonica was also studied in the paper.

本文分析了铅对人体健康的影响，研究了国槐吸收净化大气中铅化合物的作用

After detail analysis of current several iron removal methods, it was proved that the jarosite could not only be used for iron deep purification, but also release the accumulation of sulfate, which was due to the oxidation of pyrite.

在对现行诸多除铁方案进行分析后，指出了黄钠铁矾法不仅可以从锰结核浸出氯化物溶液中深度净化除铁，而且可以同时除去黄铁矿氧化生成的大部分硫酸根，这样无疑避免了硫酸根在氯化物体系中的积累。

Again, it starts with the performance of ritual purification followed by a prayer at the Kaaba mosque.

再次，它一开始的表现祭祀纯化后，有一个祷告，在天房的清真寺。

I hope it is not rash to surmise that the much-debated word __katharsis__,'purification' or 'purgation', may have come into Aristotle's mouth from the same source.

我推测众说纷纭的"catharsis"一词在亚里士多德那里也来自同一源头，希望这一断言不会过于轻率。

The purification quantitative method is not only laconic but also accurate.

2计算净化量的方法运用数学曲线积分面积公式，既简便又准确。

Beta;-lactam antibiotics is normally obtained from fermentation, purification, chemical modification and refining process.

beta；-内酰胺类抗生素一般由微生物发酵、纯化、精制以及化学修饰等过程得到。

It included the synthesis of lactide, the purification of lactide, the polymerization of lactide and the compositess analysis and so on.

包括丙交酯的制备、提纯、聚合及复合材料性能的表征一系列研究工作。

It included the synthesis of lactide, the purification of lactide, the polymerisation of lactide and the polymers analysis and so on.

包括丙交酯的制备、提纯、聚合及聚合物的性能表征—系列研究工作。

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％。