Slewing bearings are basic components widely used in construction machinery industry.回转支承是工程机械行业的重要基础件.It is used for the crane slewing bearing.这是用于起重机的回转支承.The single - row four point contact ball slewing ring is compos...
盟国的运输船受到德国潜艇攻击,损失惨重.Allied transports suffered greatly from German submarine attacks.它只须摆开架势,就可以使意大利的运输船从苏伊士运河退回去.It could by a gesture have turned back Italian transports from the Suez Canal.好. 我能否承租不定期运输船来降低我的运输费用 呢 ?G...