Block and tackle: Combination of pulleys with rope or cable, commonly used to augment pulling force.滑轮和滑车组: 带绳索和缆绳的滑轮组, 通常用于增大拉力.Levers and pulleys are simple machines.杠杆和滑轮是简单机械.Among them were rickshaw pulleys, peddler...
聚丙烯与氧化铈的复合纤维将具有更优异的性能.The performances of PP and CeO _ 2 composite fiber will be excellent.我们是要为自己不断的摸索,培育出更优异的犬只.We to educate anyone who wants to know more about Siberians....
He carried on several occupations at a time.他同时从事几种职业.Jerusalem has seen endless conquests and occupations.耶路撒冷历经无数次征服、占领。Money is still a major incentive in most occupations.在许多职业中,钱仍是主要的鼓励因素.A decline in gambling would...
去年，这个集团的纯利润率为30%。The group had a net profit margin of 30% last year.为了维持资金周转，利润率已被降为最低。Profit margins have been slashed to the bone in an attempt to keep turnover moving.为了保持利润率，常置卫生和安全规章于不顾。In order to maintain profit m...