短語詞組短語votex grit removal chamber 鏇流沉砂池aeration grit chamber 曝氣沉砂池shallow grit chamber 淺沉砂池slot grit chamber 隙縫沉砂室horizontal flow grit chamber 平流沉砂池sewage grit chamber 汙水沉砂室;汙水沉沙池desilting basin grit chamber 沉沙池aerated grit chamber 曝氣沉砂池;曝氣沉沙池 返回 grit chamber