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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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