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- underground air channel 地沟风道
- Mining enterprises inspect the poisonous and harmful substances at the work sites and the percentage of oxygen in underground air to ensure that they meet safety requirements. 第十七条矿山企业必须对作业场所中的有毒有害物质和井下空气含氧量进行检测,保证符合安全要求。
- Huaqingjiayuan used as a reporter in the hotel project with underground air, also probably the case : are dark, dank underground space has become almost common. 记者在华清嘉园被用作旅馆的地下人防工程采访时，情况也大抵如此：昏暗、潮湿几乎成了地下空间的共性。
- The instrument's specially designed air channel, it's rounded labium, and it's inner organ(keyhole) makes possible a transparent singing tone. 乐器上特别设计的空气通道，圆形的吹口，和它内部的结构（指孔）所有的这些使得音色具有穿透力和歌唱感。
- The gear configuration of axial air channel not only benefits IRZ and ERZ, but also strengthens mixing intensity as a whole. 提出的齿结构喷燃器，对于增大内、外回流区和提高整体的混合强度的作用是十分明显的。
- Heating ventilation and dusting .Air condition and smoke exhauting engineerings for industry and civil buildings Design for underground air defence engineerings Heat supply plan and design for a city or a region. 工业与民用建筑供热采暖工程通风除尘工程，空调与防排烟工程地下人防工程设计，城市自供热规划与设计。
- The indicator light is lit, the switch of fan shall be turned on as soon as the instrument is warm, so that the heat produced can be forced to convect through the air channel. 指示灯亮，仪器加温后即应打开风机开关，使其热量往风道强制对流。
- ventilation with underground air 地道风利用
- underground air defense facilities 地下人防
- The air in the garden was warm and fragrant. 花园里的空气一片温馨。
- The archers sent their shafts through the air. 弓箭手向空中射出利箭。
- Chain and Giving an Alarm of Coal Underground Air Door 煤矿井下风门的连锁与报警
- This channel comes on the air every morning at 7 am. 这个频道每天早晨7点钟开始播放。
- Recently they have laid an underground pipeline. 最近他们铺设了一条地下管道。
- Wofking Craft of Underground Air Crossing in Wangzhuang Coal Mine 王庄煤矿井下风桥的施工工艺
- However, a better air channels. 然而，宣泄有更好渠道。
- The missile is delivered from underground. 这种导弹由地下发射。
- They were suspected of underground activities. 他们被怀疑进行地下活动。
- The Carbon Ceramic (CCB) brakes are fanned by air channeled through enlarged intakes in the bodyshell, while openings in the front fenders provide additional ventilation for the SuperVeloce. 碳陶瓷（建设银行）刹车煽动空气透过扩大的摄入量的车身，而开口的前挡泥板提供额外的通风的SuperVeloce。
- Moles stay underground most of the time. 钱鼠大部分时间住在地下。
