Tank wagons ; vent holes and drain plugs on tank wagons with indined tanks 槽车.排气孔和闭锁螺栓.倾斜罐槽车
2.
Tank wagons ; vent holes and drain plugs on pressurized gas tank wagons with bottom discharge 槽车.排气孔和闭锁螺栓.底部压气卸载槽车
3.
Ign : with the gun slots in the bunkers and the vent holes all around the map , would you say this is paradise for people with grenades 地堡中那么些枪眼和遍布全区的通风口是不是意味着手雷狂人的春天来了？
4.
The research indicated that the airbag volume , vent hole size and gas generate mass flow rate exert dominant influence on the protection effectiveness of the occupants . the paper pointed out that small airbag volume , small vent hole size and low gas generate mass flow will provide the occupants with best protection in the mini - van frontal crash 研究结论表明气囊体积、气囊排气空截面积和气体发生器类型对气囊的防护效率有重要影响，并提出对于驾、乘人员安全气囊系统，小体积气囊、小排气孔截面积和高气流率的发生器的组合将产生最佳防护效果。
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