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lihonghai
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樓主  發(fā)表于: 2024-06-05 17:22
一個(gè)水池，水位到達低位時(shí)，由一號泵先抽，水位再高時(shí)，再加上二號泵抽，水位繼續上時(shí)，一直到4號泵一起抽。當水位下降時(shí)，先停開(kāi)機時(shí)間長(cháng)的泵，即一號先停，再順續停。
附件： Dvp3.rar (11 K) 下載次數:443
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