气压也就是气体的压力，国际单位是帕，常用的还有MPa，1MPa=10^6帕。
根据国际协议，气压现在用百帕为单位表示。
By international agreement pressure is now expressed in hPa's.
或者如果摩天大楼有外置的紧急楼梯，那就更容易了，沿楼梯从下往上走，以气压计长度为单位标注摩天大楼有多少个气压计长度，然后再把这些数值加和起来。
Or if the skyscraper has an outside emergency staircase, it would be easier to walk up it and mark off the height of the skyscraper in barometer lengths, then add them up.
完整的转子，发动机，离合器和转子空气压缩机(图14)是已被相同的单位则正在开发中的XHRH - 1攻击直升机。
The complete rotor, engines, clutches, and rotor-air compressors (Fig. 14) were to have been identical to the units then under development for the XHRH-1 assault helicopter.
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