... 活动布水器movable distributor 空气扩散曝气diffused air aeration 浅层曝气Inka aeration ...
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... 扩散空气装置：diffused air device 扩散空气曝气：diffused air aeration 扩散板：diffusion block ...
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... coarse bubble aeration 粗气泡曝气,大气泡曝气 diffused air aeration 扩散掺气;扩散曝气 forced aeration 强迫掺气 ...
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