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顺三三:第一方案,放空管找个细点的,接到主缸,进到液面下,开条形槽,可以吸油膜,还可避免下水量不足。当停电时, 水面下降,形成破空,阻止虹吸溢流。 (2012-11-07 11:17) o_X"+ s
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