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.
他只好自力更生，獨(dú)立奮斗了。
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(guó)外機(jī)載設(shè)備吊艙環(huán)境控制系統(tǒng)技術(shù)發(fā)展的狀況 ;提出了一種新的回冷逆升壓式?jīng)_壓空氣循環(huán)制冷的吊艙環(huán)控系統(tǒng)方案 .
A boot strap driving method based on the constant current resource
一種基于恒流源原理的自舉驅(qū)動(dòng)方法
The strap had been fretted away.
皮帶已經(jīng)被磨損了。