He was attempting to manufacture quinine from aniline, an inexpensive and readily available coal tar waste product.

他试图用苯胺批量制造奎宁，苯胺是一种廉价且容易获得的煤焦油废料。

youdao

The main waste product, oxygen, they emit through their stomata in a watery belch.

而光合作用中分解出的氧粒子，最终形成了氧气，作为“加工废料”，随着水分的蒸散通过气孔排放出去。

youdao

It is also a waste product that would otherwise be burned, and is therefore cheap.

稻草还是一种最后要被烧掉的废弃物，因此很便宜。

youdao

Walter Schmidt and Masud Huda are now adding another chicken product to their flowerpots -- chicken waste.

VOA: special.2010.06.01

In addition,news agencies provide updates and companies share product information through Twitter Some critics say Twitter is a waste of time that takes people's attention away from their work.

VOA: special.2009.02.06

It is believed to be the contents of animals stomachs, a waste product from meat plants.

BBC: Clubs open despite disease appeal

Alcohol would be a waste product of these replicating yeasts, but it's not the only product.

FORBES: Field of Dreamers

Those who think that poetry is a waste product of neurosis will have a lovely time.

NEWYORKER: Tom and Viv