block and tackle
常見例句
- I finally hoisted him up with a block and tackle.
我最終用滑輪組把他吊了上去。 - The drilling line is reeled over the crown block and traveling block to gain mechanical advantage in a "block and tackle" or "pulley" fashion.
鉆井用鋼絲繩通過天車和游動(dòng)滑車以滑輪組的形式獲得機(jī)械上效益。
www.infopetro.com.cn - The problem about mechanical efficiency of tackle-block is the key point in junior high school mechanics and also the difficult point.
滑輪組機(jī)械效率問題是初中力學(xué)中的重點(diǎn),也是初中力學(xué)解題的難點(diǎn)。 - If an advertiser chooses to merely block and tackle, lacking human relevance, his message will die a quick death.
FORBES: gyroVoice: Less Fartsy, More Artsy: The Evolution of Advertising Into an Art Form 返回 block and tackle