Atmospheric tank of toxic medium is protected under seal nitrogen, to decrease VOC.
有毒物料的常压容器和储罐设有氮密封保护，减少有毒物料进入工作环境。
Unloading method of injecting nitrogen to tank car to raise pressure and liquid extraction with centrifugal pump simultaneously is often used to unload butadiene tank car.
丁二烯罐车卸车多采用氮气注入罐车加压，同时用离心泵抽液的卸车方法。
Objective To study the occupational hazards characteristics in the process of big and small breathing loss on nitrogen sealed vault tank.
目的研究氮封拱顶化工储罐“大小呼吸”过程中的职业危害特征。
This device helps vent gas that boils off from the liquid oxygen tank, and also bathes the top of the tank in warmed nitrogen to prevent ice from forming.
这个装置有助于排除液氧燃料箱蒸发的气体，并且它还可以用加温氮气笼罩箱顶，以防结冰。
The paper expounds the necessity to use the nitrogen replaceable equipment in handling the problems with liquid-oil-gas-carrying tank cars by using nitrogen replaceable equipment;
论述处置液化石油气汽车槽车事故使用氮气置换的必要性及氮气置换装置的组成、工作原理；
To avoid condensation and freeze in the waveguide the nitrogen-gas guide holes and the collection tank are designed.
为了避免波导内部冷凝结霜在波导壁上设计了氮气导孔和氮气收集筒。
Three spacewalks are planned during Discovery's 14-day flight, to install Kibo, replace an empty nitrogen-gas tank and try out various cleaning methods on a clogged solar-wing rotating joint.
在14天的飞行中将计划安排三次太空行走。分别是：安装Kibo实验室、替换一只空氮气箱以及在一个尝试各种方法清理被卡住的太阳能电池翼旋转关节。
Three spacewalks are planned during Discovery's 14-day flight, to install Kibo, replace an empty nitrogen-gas tank and try out various cleaning methods on a clogged solar-wing rotating joint.
在14天的飞行中将计划安排三次太空行走。分别是：安装Kibo实验室、替换一只空氮气箱以及在一个尝试各种方法清理被卡住的太阳能电池翼旋转关节。
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