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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。
- 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
- When sound wave propagates in air whose temperature changes with altitude, refraction of air happens.Sound will move towards areas with lower temperatures. 当声波在温度随高度改变的空气中传播时，便会发生折射现象，声波会向著气温较低的地方走。
- 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？
- Sound Propagation in the Nocturnal Boundary Layer. 夜间边界层中的声传播。
- 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。
- Simulation of High Power Microwave Long Pulse Propagation in Air with a Refined Model 一种改进模型计算高功率微波长脉冲大气传输
- 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。
- 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。
- Plants won't propagate in these conditions. 植物在这种条件下不能繁殖.
- Breathe in air the colour of lavender. 你将淡紫色的空气吸入了体内。
- 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。
- Simulation of Light Propagation in Fiber Optic Taper by Mone Carlo Method[J]. 引用该论文 孙爱娟;田维坚;屈有山;卜江萍;王耀祥.
