In the parlance of chemists , metallic lead is electropositive .

化学家认为，金属铅是电正性物质。

Chemists didn 't solve chemistry problems ; they solved molecular biology problems .

化学家没有解决化学问题；他们解决了分子生物学问题。

So chemists and turbine designers in rich countries get a wage boost .

所以，富国的化学家们和涡轮机设计师们薪酬大涨。

When making an organic compound , chemists have to join carbon atoms together .

创造有机化合物时，化学家要设法将碳原子聚集在一起。

Chemists who design drugs keep on trying to make the key fit only one lock .

设计药物的化学家就必须不停地确保这些钥匙只能开一把锁。