查询词典 air seal

The construction intrinsically safe mine,high yield and high effective green mining is the mine development direction,this paper proposed the mine entire seal fixed point type well ventilated new mentality now,uses all seals up the pipeline to ventilate the place supplies air to the mine shaft fixed point.

建设本质安全型矿井，高产高效绿色开采是当今矿山发展的方向，文章提出了矿井全封闭定点式通风的新思路：采用全封闭管路向井下定点通风地点供给空气。

The face masks contain a transparent dome for visual check of bleeding, vomitus and spontaneous breathing, and a air cushion for a tight fit and easily seal to patient's face.

透明的面罩外壳便于观察面罩内呕吐物、血污和患者自然呼吸情况，面罩气垫轮廓贴合患者脸型，提供良好的密封效果。

The company has domestic advanced production lines of a composite four, three composite production lines, two single-extrusion production line, air-conditioning pipe production line 2, and another flat-panel vulcanizer 30 Units, the annual production of 6,000,000 meters seal, hose 500,000 meters.

公司拥有国内先进的四复合生产线一条，三复合生产线两条，单挤出生产线两条，空调管生产线二条，另有平板硫化机30台，年生产密封条600万米，胶管50万米。

Unfortunately, this air-tight seal is often hard to maintain, especially if passengers want to walk between cars.

可惜的是，这种密封的密封性很难维持，特别是当乘客需要在不同的车厢之间行走时。

Unfortunately, this air-tight seal is often hard to maintain, especially if passengers want to walk between cars.

不幸的是，这种密封的状况经常很难保持，特别是当乘客想要在车厢之间走动的时候。

Unfortunately, this air-tight seal is often hard to maintain, especially if passengers want to walk between cars.

不幸的是这种封闭舱很难维持，尤其在乘客想在车厢之间走动。

Unfortunately, this air-tight seal is often hard to maintain, especially if passengers want to walk between cars.

不幸的是，这种密闭舱通常很难维护，特别是如果乘客想在车厢间走动。

Unfortunately, this air-tight seal is often hard to maintain, especially if passengers want to walk between cars .

不幸的是，密封条很难持久，犹其是乘客想在车内走动的时候。

Unfortunately, this air-tight seal is often hard to maintain, especially if passengers want to walk between cars.

但不幸的是，这种高气密的设备不容易保养维护，特别是当乘客们想要在车与车之间走动时显得更为困难。

It is a good idea to use expanding foam caulking to seal the new door frame to the rough opening and threshold to prevent air from getting around the door seals and into the house.

这是一个好主意，用扩大泡沫嵌缝密封新门框的粗开放和阈值，以防止游览门封条，进入室内空气。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。