在有较大开口的情形中,还需选购背衬材料.A backing material is optionaland only needed for large openings.酚醛背衬阀座: 不可拆解, 抗拉伸,抗撞击.现场可更换.Phenolic Backed Seat: Non - collapsible, stretch resistant, blow out proof, field replaceable.剥离背衬膜.Peel of...
Even among seasoned mountaineers Pinnacle Ridge is considered quite a tough proposition.即使在经验丰富的登山者中，平纳克尔峰也被认为是很难攀登的。The mountaineers bartered between each other.山民们彼此以货易货.The mountaineers did not begin to come down the ...
He slurped down a cup of sweet, black coffee.他咕嘟咕嘟地喝下了一杯加糖的清咖啡。He crunched his cookies and slurped his tea.他嘎吱嘎吱地咬着饼干,咕噜咕噜地喝茶.He slurped his soup.他啧啧地喝着汤....
The orchestra has more discipline now, but at the expense of spirit.那个管弦乐团现在更有纪律性了，却丧失了灵魂。They are worth having but not at the expense of better services.它们值得拥有，但是不能因此放弃更好的服务。The dealers profited shamefully at the expens...