negative pressure breathing的用法和樣例：
例句
- Firemen should wear proper protective equipment and positive pressure self-contained breathing apparatus.
消防員須身穿保護裝置及正壓呼吸設施。 - The use of positive pressure respirators with double gloves also affects dexterity but to a lesser extent.
雖然在配戴正壓呼吸防護具并穿戴雙層手套時(shí)會(huì )影響靈活度，但影響程度較低。
