The pressure to participate in a handful of activities all the time and to "keep up" can be physically and emotionally exhausting for parents and kids alike.
总是参加一系列活动并保持不落后的压力使得大人和孩子一样身心俱疲。
Many mines or mining city in China are faced with many problems, such as severe environment pressure and exhausting resources etc.
我国许多矿山或矿业城市面临严重的环境破坏和资源枯竭问题。
Following the gradual enlargement of steam generation pressure, the flow velocity of exhausting steam is accelerated; then, the valve core is pushed upwards to block an air exhaust passage.
随着产生蒸汽的压力逐渐增大，排出蒸汽的流速加快，将阀芯上推堵住排气通道。
When it works, the piston rotates all the time, and runs a circle to automatically complete two pressure circulations of charging and exhausting without air distributing mechanism.
该空压机在运行时活塞始终在旋转，且运行一周，自动完成进、排气两个压力循环，无须进、排气阀门等配气机构。
The results show that the position of the exhausting gas hole and the arc heat effects on the gas inside the hollow moving contact have obviously raised the pressure rising speed.
利用它对国产OFPI—220型SF_6断路器进行的计算结果表明，改变动触头排气孔位置及电弧对动触头内腔中气体的热效应可明显提高开断电流时灭弧室压力上升速度。
The negative pressure air exhausting device can effectively prevent combustible gas from exploding under positive pressure so as to ensure safety production.
负压排风装置可有效预防可燃气体正压爆炸，保证安全生产；
The negative pressure air exhausting device can effectively prevent combustible gas from exploding under positive pressure so as to ensure safety production.
负压排风装置可有效预防可燃气体正压爆炸，保证安全生产；
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