降低牙科手术中的汞蒸气含量。

Lancet. 1978 Jan 28;1(8057):200-1. doi: 10.1016/s0140-6736(78)90629-3.

A restricted survey in one dental practice has shown that a considerable reduction in contamination by mercury vapour can be achieved by the use of a fume cupboard. Failure to employ this added protection may have legal implications.

在一家牙科诊所进行的一项有限调查显示，使用通风柜可以大幅减少汞蒸气污染。不采用这种额外的防护措施可能会带来法律问题。