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在过去修的小区圆柱形积水池,总是不规则,有的成扁圆形,有的上下大小不一样,因而也就不能直接以圆柱形的容积来测含泥水总量,只好在径流发生后,用桶一下一下的量,不但记数麻烦容易发生错误,而且由于桶水面动荡不定,很鸡准确,又太费工费时,有时因渗漏蒸发等失掉准确数量,
In the past, the community’s cylindrical pool was always irregular in shape, some in an oblate shape, and some in different sizes. Therefore, it was not possible to directly measure the total amount of muddy water in a cylindrical volume, Occurred after the barrel about the amount of not only count the number of trouble prone to error, but because of the volatile water barrel, chicken is very accurate, but also a lot of time and labor costs, and sometimes lost due to leakage evaporation and so the exact number,