He hurriedly prepares the hole and begins mixing the concrete.
他仓促地开始准备洞口和搅拌混凝土。
The results show that improved hole is more advantageous to the radial mixing of gas stream.
对比结果表明，桥孔比圆孔更有利气流的径向扩散。
The radial mixing characteristics were studied for two different types of hole in the Mellapak under two-phase countercurrent flow.
在两相流工况下，对两种孔型板波填料作气流的径向分布性能的实验研究。
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