Please work out the total amount of crude material in this project.

请你计算出这个项目投料的总数。

Phenothiazine is an important fine chemical product and crude material.

吩噻嗪是一种重要的精细化工产品和原料。

This request when twines the crude material belt must pay attention to a pro and con the order.

这要求在缠绕生料带时要注意一个正反的顺序。

As an industrial crude material or novel fuel, these hydrogen gases may be directly applied also.

氢气也可以作为工业原料或新型燃料直接应用。

The way using crude material furoic acid and propyl alcohol to synthesize propyl furoate is researched by catalyst stannous oxide. The yield is 77%.

以呋喃甲酸和正丙醇为原料，氧化亚锡为催化剂，合成了呋喃甲酸正丙酯，产率可达77% 。