vapour removal的意思|示意

The weld defects and thermal stress result in failure of vapour wax-removal loop-pipe used in floating roof tank.

浮顶罐蒸汽除蜡装置失效的原因是施工焊接缺陷和热应力破坏。

It is found that the COD removal efficiency increases as the increase of reaction time with the same mercury vapour lamp.

试验发现，在同一汞灯照射下，随反应时间的加长，COD去除率呈现增大趋势。