... 对流免疫电泳 counter immunoelectrophoresis 对流塔板 counter-flow tray 对硫磷 parathion ...
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counter flow tray 对流塔板
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The compound tray has no down comer, gas and liquid counter flow through the holes of on the tray.
复合塔板不设降液管，气液同时逆流穿过筛孔。
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