The paper compares the methods dealing with water leakage from troughbottom of water-sealed gasholder, and introduces the construction way and effect of excavation method.
对湿式燃气储气罐水槽底板漏水的处理方法进行了比较,介绍了挖掘法的施工方法和效果。
2
Waves are measured (测量) from the top (crest) to the bottom (trough).
海浪是从波峰到波谷进行测量的。
3
A trough is built alongside the road and kept half-filled with water which is heated by oil and air fed units at the bottom.