The direct synthesis of organosilicon monomer is the key and foundation stone of the global silicone industry.
直接法合成有机硅单体是有机硅工业的关键和基石。
The direct synthesis method has the merits of requiring no calcining shorter producing period and lower costs.
直接法的优点在于产品不必经过焙烧， 生产周期短，成本低等。
The direct synthesis of lanthanum stearate is studied under the reaction of stearic acid to La2O3 in the presence of catalyst.
研究了硬脂酸和氧化镧在催化剂作用下直接合成硬脂酸镧的方法。
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