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- He sucked in air, then went under the water again. 他深深吸了一口气又潜到水里。
- The actual processes of firedamp explosion in coal mines involve a catastrophic processes occurring in air conditions of underground coal mines . 煤矿发生瓦斯爆炸的过程实质是井下气体状态发生突变的过程。
- Designed to operate on land, water, or in air. 长于陆海空作战的，三栖的可在陆上、水上或空中操作的
- How much does sound travel faster in water than in air? 声音在水中比在空气中传播快多少？
- The speed of sound in water is about four as great as in air. 声音在水中的速度是空气中的四倍左右
- Exhaust gas has been incriminated in air pollution in cities. 废气已过视为城市空气污染的原因。
- She crawled onto the river bank and lay there gulping in air. 她爬上河岸,躺在那里喘着大气。
- Estimating air blast characteristics for single point explosions in air, with a guide to evaluation of atmospheric propagation and effects 空气中单点爆炸特性及在大气中传播和影响的评定指南
- What is the percentage of nitrogen in air? 空气中所含的氮的比例是多少?
- He watched the bombs bursting in air. 他看见炸弹在空中爆炸。
- He sucked in air,then went under the water again. 他深深吸了一口气又潜到水里。
- The oxidizing temperature is350℃,3 hr in air. 过氧化则会使薄膜富氧，同样使结构变化，吸收限变宽而向高能方向移动。
- Rinse filters in air conditioners. 冲洗空调的过滤网。
- Explosions in the freeboard and gas exit system are an everpresent danger. 在自由空域以及气体出口处发生爆炸是始终存在的危险。
- Sound travels better in water than in air. 声音在水中比在空气中传播得快。
- Casualties in air crashes are terrible. 空难的人员伤亡很可怕。
- The miners put some explosives in the mine. 矿工在矿井里放了些炸药。
- Breathe in air the colour of lavender. 你将淡紫色的空气吸入了体内。
- Following the explosions in the town centre,crowds of people looted the shops. 市中心发生爆炸后，成群的人抢劫了商店。
- Sound travels at 1, 100 feet per second in air. 声音在空气中的传播速度为每秒钟1,100英尺。
