1. an entrance intended for the use of servants or for delivery of goods and removal of refuse. 
   专供服务人员用的门口，如他们可以把用到的东西弄进去再把不用的东西拿出来。
2. removal of particulate matters 
   颗粒物的去除
3. Surgical removal of hemorrhoids. 
   痔除手术除去痔的外科手术
4. dust removal of spinning mill 
   纺厂除尘
5. removal of carbon in steelmaking 
   钢的脱碳反应

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• 1. 垃圾清除
  premature removal 提前拆修...refuse removal 垃圾清除...rust removal 除锈, 除锈器
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