提升
例句:
In addition, the ascensional ventilation system has the "gas-valve" effect at the intersecting place of the ramp and the working-face increases the danger of spontaneous ignition, which the descentional ventilation system does not have.
另外,上行通风在坡道与工作面汇交处存在增加自然发火危险性的气动闸阀效应,而下行通风不存在。
The ascensional velocity of maximum blast pressure of mixture will rise due to the existence of gas, but maximum blast pressure is almost unchangeable.
混合物的最大爆炸压力上升速度由于瓦斯的存在而增强,而最大爆炸压力几乎没有变化。
The horizontal tail wing of the wing-in-ground effect craft has the advantages of great ascensional force, small area and low production cost.
这种地效翼船水平尾翼,升力大、面积小、生产成本低。