Asbury A J, Hancox A J
Br J Anaesth. 1977 May;49(5):439-46. doi: 10.1093/bja/49.5.439.
A recently installed anti-pollution system, initially designed to function in a passive mode, was evaluated, but found to be inconstant in its performance. A simple method of making the system active is described and evaluated.
对最近安装的一个最初设计为被动模式运行的抗污染系统进行了评估，但发现其性能不稳定。本文描述并评估了一种使该系统变为主动模式的简单方法。
