- 双语例句 更多例句
Balloons are aerostats, which means that are lighter than air when inflated.
气球是轻飞行器,也就是说,充气后, 它们会比空气轻.
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Being both lighter than air and nonflammable, helium is used to inflate balloons and airships.
由于既比空气轻又不可燃, 氦用作充气球和飞艇.
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In nature, lighter-than-air volcanic lava traps bubbles of various sizes as the molten rock cools.
自然界中, 比空气还轻的各种火山灰在冷却过程中变为海底火山岩.
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- 相关词组
- air winch风动绞车;
- air vessel空气罐;
- air traffic controllern.空中交通管制员;
- air ventn.气孔;
- air tube空气管;
- air ventilator通风孔;通风管;空气通风器
- air trowel气动泥刀;
- ambient air环境空气,周围空气,大气;
- air traffic control空中交通管理,空中交通管制,空中交通指挥;
- air water heat pump空气水热力泵;
- air voids孔隙;
- all air system全空气系统;
- all outside air system全外部空气第系统;
- air volume control风量控制
- air valven.通气管之活瓣;气阀;风阀;
- air traveln.空中旅行;
- air waybill空运单;
- air treatment空气清新剂;
- all air heat pump全空气式热力泵;
- air way bill空运提单;
- 今日热词
- 热门搜索
- scenery n.风景;风光;景色;舞台布景
- ease n.容易;舒适;无忧无虑;v.减轻;缓和;(使)小心缓缓地移动;降低;(使)贬值;
- simple-minded adj.纯朴的;(头脑)简单的;低能的;头脑简单;
- spoonful n.一匙,一匙的量;“spoon”的派生;
- bring vt.带来,引来;促使,引起;提供;导致;
- so as to 为了…;以便;庶几乎;庶乎;
- mud n. 泥,泥淖;没价值的东西,污物;<美俚>咖啡;诽谤的话;vt. 抹泥;钻入泥中;
- practice n. 练习;实践,做法;(医生或律师的)业务;惯例;v. 练习;实习;实行;
- totally adv.完全;
- river flows in you 在你体内流淌的河(歌曲名);
- livehouse 音乐展演空间;音乐酒吧;黑铁
- reigns n.君主的统治( reign的名词复数 );君主统治时期;任期;当政期;
