Second, on account of the block of gas channel we designed a gas channel system, through which the hydrogen can flush the gas channel after the reaction by the control of valves.

针对以前气路堵塞的问题设计并制作了气路系统，使氢气在反应后能够通过阀门控制对气路进行冲洗。

youdao

This is time for the second flush - or harvest - of tea in the region, which fetches high prices in European markets.

BBC: India tea region strike resumes

Now the world's second-largest economy, and flush with cash, China has built the world's longest high-speed rail network -- boasting more than 8, 300 kilometers (5, 100 miles) of routes -- in a few short years.

CNN: STORY HIGHLIGHTS