首页
›
答案
›
题库
›
才高八斗
已知流速U= 0.8米/秒，管线的直径为500mm，求流量？
已知流速U= 0.8米/秒，管线的直径为500mm，求流量？
正确答案：解：Q=314*r×r×U=0.25×0.25×3.14×0.8×3600立方米/小时=565立方米/小时
标签：
小时
流速
管线
上一条：
As Europe’s economy has soured， free-market ideas that are new to much of Europe face new challenges.
下一条：
At the summit meeting， America insisted that Japan should come up with specific measures that would enable it to meet new import targets.