52.there is an air hole nearby of the flange of no.1 sanitary pump inlet pipe , to be renewed.
1号清洁泵入口管的法兰盘附近有气洞,需换新。
单词 | sanitary pump |
例句 |
原声例句
航海英语听力 52.there is an air hole nearby of the flange of no.1 sanitary pump inlet pipe , to be renewed. 1号清洁泵入口管的法兰盘附近有气洞,需换新。 |
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