When it comes to pollution, the chemical industry is a major offender.

谈到环境污染问题，化工产业是一大祸害。

In the chemical industry, they are routine.

而在化工行业，这样的起落已成为常规。

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。

The chemical industry says BPA is the safest, most effective sealant.

化工行业声称BPA是最安全最有效的密封材料。

The Department maintains many close contacts with the chemical industry.

这个部门与化工行业保持着众多密切的联系。