控制循环空气的相对湿度和空气的温度可防止表面硬化的出现。
It is prevented by controlling the relative humidity of the circulating air and the temperature of the air.
他在执行第一次太空行走的任务时，又是碰到空气泄漏，又是碰到材料意外硬化——后者把他压回了密封舱，几乎让他丧命。
He performed the first space walk on his mission, but experienced both air leaks and material unexpected stiffening — the latter of which made cramming himself back in the capsule a very near thing.
导致CVD风险增加的机制尚不清楚，但是研究人员相信空气颗粒物可以促进动脉粥样硬化。
The mechanisms that led to this increased risk of CVD are unclear, but the researchers believe that the air particles may accelerate atherosclerosis.
应用推荐