Inspiratory pressure span exhibition chest rise, eyes to watch the direction of the ceiling.
吸气,压跨、展胸、抬头,眼睛看向天花板的方向。
Then increase the sample pressure until the reading displays span gas value.
然后,增加采样的压力,直到读显示标定刻度气体值。
The probability fatigue life - span of pressure vessel under the action of different cycle load is closely related to the cycle load with high stress.
承受不同循环载荷共同作用的压力容器,其概率疲劳寿命和在高应力水平上的循环载荷有着密切的关系。
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