逆向排水井的英文

• inverted drainage well

• 逆向:    reverse; reversal; backing; ...
• 排水井:    drain; dry well; drainage we ...
• 逆向排水:    backward drainage
• 排水井:    absorbing well; bleeder well; catch pit; catchpit; discharging well; drain well; drainage shaft; drainage well; draining well; dry well; negative well; offset well; pump shaft; relief well; water disposal well; water shaft; well drain
• 集水井；排水井:    catch pit