The deformation value of coal body can be served as a criterion for predicting the risk of coal outburst, as well as an assessment of the effect of degassing measures in coal seams.
变形值可以作为预测煤体突出危险性的一项指标，并可用于预测抽放瓦斯措施的效果。
The effect of ultrasonic degassing under different time of A356 Aluminum alloy is studied by using vacuum decompress test, and the effect of ultrasonic field on the solidification microstructure.
以a356合金作为实验材料，通过真空减压试验考察超声场对金属气体去除效果的影响，研究超声场对铝合金凝固组织的影响。
The effect of melt treatment method on degassing efficiency of ultrasonically refined pure aluminum ingots was investigated. Furthermore, the mechanism of ultrasonic degassing was analyzed.
研究了不同的熔体处理方法对纯铝铸锭超声波除气的影响，分析了影响超声波除气效果的原因。
At the same time, the degassing process increases the number of eutectic nucleus and improves the inoculating effect, thus raising the strength of the gray irons.
吹气处理在净化铁水的同时，增加铸铁共晶团的数量、改善孕育效果，从而提高灰铸铁的强度。
Objective: This study is to determine the effect of different surface anodizing and degassing-preoxidation on bonding strength of porcelain to Ni-Cr alloy.
目的：研究非贵金属合金在上瓷前经过不同的阳极钝化条件处理及除气、预氧化对金瓷结合强度的影响。
Objective: This study is to determine the effect of different surface anodizing and degassing-preoxidation on bonding strength of porcelain to Ni-Cr alloy.
目的：研究非贵金属合金在上瓷前经过不同的阳极钝化条件处理及除气、预氧化对金瓷结合强度的影响。
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