英德
有道
百度
谷歌
图片
维基
百科
成孔速度 [chéng kǒng sù dù]
speed of fulfiling hole
- 通过工程实践和大量试验，研究组合式钻具钻孔方法，较好地解决在上述地层中的成孔问题，提高施工速度。
A drilling technique using combined drilling tools is developed via several tests and practices, which well solve the problem about borehole drilling in some strata mentioned above and improve the construction speed. - 得出结论：分布板压降和流速成二次函数关系；以木屑为原料，分布板开孔率和床层高度对临界液化速度的影响不大，粒径分布对临界流化速度随粒径的增大而增加。
The results of this experiment showed that pressure drop and flow velocity are related in quadratic function; the effects of opening rate of distributor sad bed height on critical fluidization velocity are rather slight, while the effect of particle size on critical fluidization velocity is very obvious.
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