quantity可数吗

例句：

A swoop by customs officers netted a large quantity of drugs.

海关人员突然袭击，缉获大量毒品。

The quantity of chemical pollutants has increased exponentially.

化学污染物的数量已经急剧上升。

I was overwhelmed by the sheer quantity of information available.

已有的信息量大得令我不知所措。

After some initial problems, acetone was successfully produced in quantity.

解决了最初的一些问题后，成功地生产出了大量丙酮。

The sheer quantity of detail would bemuse even the most clear-headed author.

大量的'细节会让即使是头脑最清醒的作者都感到困惑。

Greek civilization had quality; Rome, mere quantity.

希腊文明有质量；罗马文明只有数量。