There's no chemical dependence.

这里面没有化学依赖问题。

youdao

A few years ago this city had almost no chemical industry.

几年前，这个城市几乎没有化学工业。

youdao

No chemical mystery there: Where there's fire, there's smoke.

这里没有化学的秘密，哪里着火哪里就冒烟。

youdao

We know that at one extreme we have no chemical reactivity.

我们知道，在一端,完全没有化学反应。

麻省理工公开课 - 固态化学导论课程节选

There were no chemical or biological weapons with the containerized labs, which measure 20 feet square.

CNN: U.S.: Mobile labs found in Iraq

No chemical fertilizers are used, just organic fertilizer sent straight from the gardens at Castel Gandolfo.

NPR: Vatican Sends Message: Pope's Retirement For Real

Aside from organic sulfur and copper mixes, they use no chemical sprays, no artificial fertilizers or pesticides.

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