本文设计了真空伏辊实验模拟装置，并在其基础上通过实验研究，提出降低真空伏辊空气动力性噪声的方法。
We design the laboratorial device of vacuum couch roll and base on the experimental research, we put forward some solution to reduce aerodynamical noise of vacuum couch roll.
本实用新型进入真空泵的空气温度降低，对真空泵的影响减小，减少了真空泵的故障及维修工作量。
The temperature of air entering the vacuum pump is reduced, thereby having little influence for the vacuum pump and reducing the failure and maintenance workload of the vacuum pump.
全玻璃真空太阳集热管内外玻璃管夹层间真空度的保持情况对有效降低热损、提高太阳能的利用率、延长集热管的寿命都有至关重要的作用。
The vacuum degree between the inner and cover glass tubes plays a very important role in heat loss and the life time of all-glass evacuated collector tube.
结果表明，熔渣降低真空脱氮速率，底吹氩能减少熔渣对真空脱氮的阻力。
It is found that slags decrease the rate of vacuum denitrogenation and vacuum argon blowing decreases the denitrogenation resistance of slags.
在分析原有的真空箱机械强度的基础上，使用有限元方法对真空箱进行优化设计，进一步降低了产品的重量，并获得了最小壁厚尺寸，在实际应用中达到了满意的效果。
The weight of the box is optimized using FEA method, based on the mechanical strength analysis of the old one, and the minimum wall thicknesses are obtained, and are used sounded in practice.
在分析原有的真空箱机械强度的基础上，使用有限元方法对真空箱进行优化设计，进一步降低了产品的重量，并获得了最小壁厚尺寸，在实际应用中达到了满意的效果。
The weight of the box is optimized using FEA method, based on the mechanical strength analysis of the old one, and the minimum wall thicknesses are obtained, and are used sounded in practice.
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