因此，任何想为排水管尺寸做高精确度估计的努力都是徒劳的，特别是因为管道生产的尺寸都是有一定标准的。

Therefore, any attempt to achieve a high degree of accuracy for pipe sizes is futile, especially as pipes are manufactured only to certain standard sizes.

youdao

因此，任何想为排水管尺寸做高精确度估计的努力都是徒劳的，特别是因为管道生产的尺寸都是有一定标准的。

Therefore, any attempt to achieve a high degree of accuracy for pipe sizes is futile, especially as pipes are manufactured only to certain standard sizes.

youdao