1. surface mine waste disposal 
   露天矿排土
2. A waste product or an impurity, especially an oxide, formed on the surface of molten metal. 
   废料或混杂物，尤指在融化金属表面形成的氧化物
3. Short or waste silk fibers, especially from the outer surface of the cocoon of a silkworm. 
   粗丝尤指蚕茧的外层蚕衣的短或无用的丝纤维
4. Hong Kong has stopped the formerly widespread malpractice of dumping chemical waste into the sewers and surface waters. 
   本港现已禁止过往普遍把化学废物弃置于去水渠的不良做法。
5. after the project is completed, trees must be planted and grass grown on the earth-fetching area, excavated land surface and the exposed land surface for the disposition of waste sand, rock and earth, in order to prevent soil erosion. 
   工程竣工后，取土场、开挖面和废弃的砂、石、土存放地的裸露土地，必须植树种草，防止水土流失。

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• 1. 地面径流
  露天矿排土 surface waste...地面径流 synthetic rubber waste water...合成橡胶废水 synthetic-rubber waste water
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• 2. 表面损失
  sugar-beet waste 　甜菜制糖废水,甜菜制糖废弃物...surface waste 　表面损失...tannery waste 　制革厂废水,制革厂废料
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