The starting material for producing API from which country?

生产api的起始原料来自那个国家？

youdao

Ultimately all the starting material is converted into products.

最终全部原料都转变成为产品。

youdao

Let's say we have an abundance of the starting material, and not very much light.

比如我们有大量的反应物，但是没有光。

youdao

I want to look at the energy starting from real material.

我们从身边真实的材料说起这些能量。

麻省理工公开课 - 固态化学导论课程节选

Switchgrass contains cellulose, the starting material that, with enough heat and the right enzymes and chemicals, can be made into ethanol fuel.

NPR: Study Boosts Switchgrass as New Alternative Fuel

Uranium 235 is the key material in starting a nuclear reaction, and its acquisition is the main problem facing states which want to go nuclear.

BBC: Nuclear threat casts global shadow

He began collecting material on a tape recorder when he was 20, starting with the Seeger family's maid, Elizabeth Cotten, a self-taught guitarist.

BBC: Folk singer Mike Seeger dies, 75