hammer rod drop 中文意思是什麼
hammer rod drop
解釋
動力桿落錘落錘-
At the top of the blowpipe, a hammer striking the alumina reservoir causes it to drop regularly onto a small rod
邊噴火,邊用鐵錘敲打鋁氧粉儲槽,使鋁氧粉熔漿有規律地滴落在一個小棒上。
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