您要查找的是不是：
- pollution by plastic film residue 残膜污染
- A tension member may fail by plastic yielding. 拉伸元件可能由于塑性屈伏而破坏。
- Preventing pollution by automobile emission ? 防治机动车排气污染物污染。
- Preventing pollution by automobile emission? 防治机动车排气污染物污染。
- The river has been polluted by waste products from the factory. 这条河已经受到工厂排放的废料的污染。
- LCF life could be well expressed by plastic strain energy. 低周被劳寿命可由塑性应变能表达。
- pollution by plasticizer 增塑剂污染
- Less pollution by decease of film and water waste. 5. 4.;降低废片及废水造成的环境污染。
- The area will be free of pollution by the year 2006. 到2006年，这个地区将没有污染。
- Immediate steps should be taken to prevent pollution by excreta. 要立即采取措施防止排泄物污染。
- It is of course possible to produce three-dimensional maps by plastic modeling. 制作立体地图,当然可用以采用塑料成型的方法。
- These cartons are well protected against moisture by plastic lining. 塑料衬里可以保护这些纸箱抵御湿气.
- Drains and absorbent ground areas should be covered by plastic sheeting. 排水沟和吸收性地面需用塑料薄膜盖上。
- Reduces air pollution by minimizing the discharge of unburned hydrocarbon . 将未燃烧的碳氢化合物含量降至最低，减少了空气污染。
- Rice straw is recycled for reuse to avoid creating pollution by burning it. 避免燃烧稻草造成污染，稻草也要回收再利用。
- The fiver has been polluted by factory waste. 这条河流被工厂废物所污染。
- The water was polluted by refuse from the factory. 工厂所排放的废物弄脏了水。
- The air was polluted by factory smoke. 空气被工厂冒的烟污染了。
- That was followed by plastic surgery to extend each girl's scalp to cover the area where they had been attached. 医生在完成分离手术后还要对她们进行外科整形，使每个女婴的头皮都能覆盖她们被分离的部位。
- The river has been polluted by factory waste. 这条河流被工厂废物所污染。
