MEMC still is produced and sell polycrystalline silicon, this is the crucial point material that produces primitive brilliant circle.

MEMC还出产和发卖多晶硅，这是出产原始晶圆的要害材料。

The experimental process on synthesis of roxithromycin was studied by using erythromycin oxime and MEMC as raw material under the catalytic action of anhydrous sodium carbonate.

研究了以无水碳酸钠为催化剂，红霉素肟与甲氧基乙氧基氯甲醚(MEMC)为原料，一步合成罗红霉素的实验过程。