目的介绍溢泪症的自制内涵管置入治疗。

Objective to introduce the therapy of epiphora symptoms with self-produced internal tube.

youdao

一为什么说涵管上的土压力计算与施工方式有关？

A why he slipped end-over-end said the earth pressure calculation and construction is the way?

youdao

挖到这个地方时，闻声下面‘砰’的一声，估计是挖断了下水道涵管。

Dig into this place, heard below the bang 'of 1, estimation is dig broke.

youdao

挖到这个地方时，闻声下面‘砰’的一声，估计是挖断了下水道涵管。

Dig into this place, heard below the bang 'of 1, estimation is dig broke.

youdao