Natural fabrics like silk and wool are better insulators than synthetics.丝绸和羊毛之类的纯天然织物比合成纤维的保暖性更好。To reduce heat losses the pipes are covered by thermal insulators.为了减少热散失,管子外包保温层.Crystals may be insulators, semiconducto...
Crystals may be insulators, semiconductors, or conductors.晶体可以是绝缘体, 半导体, 或导体.Natural fabrics like silk and wool are better insulators than synthetics.丝绸和羊毛之类的纯天然织物比合成纤维的保暖性更好。Polluted insulators may flashover at any time...
I have cut down its cedars, the choicest of its pines.我要砍伐其中高大的香柏树和佳美的松树.He checked into Cedars Sinai Hospital to dry out.他住进雪松西奈医院去戒酒。Open thy doors, O Lebanon, that the fire may devour thy cedars.1黎巴嫩哪, 开开你的门, 任火烧灭你的香柏...
A : Can you use broaching to make a gear?你能用拉削技术制作齿轮 吗 ?Notice: When broaching, make sure that the air escape cock is closed.注意: 在进入拉削时一定要关闭放气开关.He held the wheel firmly to prevent the ship from broaching to.他牢牢掌舵,以防船侧面迎...
许多别的乐器她也演奏得相当出色。She was no mean performer on a variety of other instruments.他给他演示如何吹奏象牙吹口乐器。He showed him how to blow into the ivory mouthpiece.鼓是最古老的乐器之一。The drum is one of the oldest musical instruments....
它们由几匹最膘壮的公野马领群, 机警善跑, 游走无定,夜间混入牧群.These wild horses, swift and alert, roam where they please, led by a few sleek steeds.食肉动物对牧群是个威胁.Predators were a threat to the herd.我自己的牲口在牧群中间.My own animals are in the middle of the ...