“正压”造句

消防员须身穿保护装置及正压呼吸设施.
Firemen should wear proper protective equipment and positive pressure self - contained breathing apparatus.

可以工作在正压或负压下, 简单的螺丝刀调节, 多种弹簧可选.
They work under pressure or suction. Simple screwdriver adjustment. Various springs available.

半管式夹套; 正压; 负压; 强度破环; 失稳.
Half - pipe jacket ; positive pressure; negative pressure; strength destruction; stability reduction.

• #正压