But Zurovcik, inspired by a burn surgeon's plea, went a step further, designing a human-powered device that applies pressure via a simple bellows pump weighing less than half a pound.

但是佐罗夫西克更进一步，她被一名治疗烧伤的外科医生的恳求所鼓舞，设计了一种人工提供动力的设备，这种设备通过一个简易的、重量不到0.5磅的风箱抽气机产生压力。

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Instead, birds have a complex network of air sacs that work like bellows to pump a constant stream of air through the lungs.

相反地，鸟类有一个复杂的肺泡结构，就像一个风箱把源源不断的空气打进肺里。

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Measures for adopting bellows expansion joint have been proposed to meet the requirement of allowable force in the inlet of pump pipeline.

为满足泵管口的受力要求，提出了采用波纹管补偿器时应采取的措施。

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