先關總閘，打開位置最低的籠頭放水。用電鑽在堵頭的前端低點打個孔放水，然後用噴燈燒，幾秒鍾後用鉗子擰下堵頭。

來源: fuz 於 2018-09-16 18:59:20 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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