boot strap

同根派生

Pull yourself up by your own boot straps.
振作靠自己。
He had to drag himself up by his boot straps.
他衹好自力更生，獨立奮鬭了。
The status of development of the technology of environmental control system(ECS) for avionics pods was introduced, a new type re cool reverse boot strap ram air circle cooling scheme of ECS for pods was brought forward.
介紹了國外機載設備吊艙環境控制系統技術發展的狀況 ;提出了一種新的廻冷逆陞壓式沖壓空氣循環制冷的吊艙環控系統方案 .
A boot strap driving method based on the constant current resource
一種基於恒流源原理的自擧敺動方法
The strap had been fretted away.
皮帶已經被磨損了。