Flush system with hydrogen until required purity is reached . Vent all waste hydrogen through a flue or flare stack .

用氢冲洗设备，直到达到所要求的纯度。通过烟道或火把 烟筒 排出所有废氢。

Outer side of the top of a leg of beef quadruped-frame supported vent stack

牛腿肉上面的外侧部分.四腿钢架支承的 排气 筒