Warning: file_put_contents(/www/wwwroot/ppbbu/62383.com/cache/d3242f83d6f12f46526765e891709513.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/62383.com/index.php on line 55 sedimentation pond例句_sedimentation pond英汉例句_sedimentation pond双解例句_流逝汉英词典
The main constructions of our water supply and purification system: sand basin, reaction and sedimentation tank, double-valves filtering pond etc. 我廠給水処理系統的主要搆築物：沉砂池、反應池沉澱池、雙閥濾池等。