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比如說(shuō)華德的這種節(jié)流閥,,兩個(gè)方向流動(dòng)節(jié)流效果一樣么,? |
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相關(guān)帖子
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點(diǎn)評(píng)
謝謝!清楚詳細(xì),!
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點(diǎn)評(píng)
我圖形配文字了,!我說(shuō)的就是那個(gè)雙向節(jié)流閥,,它的雙向是否完全一致?
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點(diǎn)評(píng)
好,!現(xiàn)在不說(shuō)那個(gè)單向節(jié)流閥閥!就說(shuō)那個(gè)節(jié)流閥,。正反兩個(gè)方向,節(jié)流效果一樣么,?
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