使用塑料轴承。不需要放油，污染少。
Use the plastic bearing. Don't need to put on oil, less pollution.
污染少，用量少，成本低。
不需要放油，污染少。
这个城市的交通噪音和污染比欧洲其他国家的首都都要少。
The city has less traffic noise and pollution than any other European capital.
马路上车少也意味着污染更少。
假如每个人停止使用塑料袋，环境污染就会少很多。
If everyone stopped using plastic bag, the environment would be much less polluted.
阳光镇的污染比月光镇的污染要少。
There is less air pollution in Sunshine Town than in Moonlight Town.
阳光镇的空气污染比北京其他地区的少。
There is less air pollution in Sunshine Town than in other areas of Beijing.
电镀是国民经济中较小却必不可少的基础工艺性行业，同时也是重污染行业。
Electroplating industry is necessary in national economy and it is also a badly polluted industry.
阳光镇的空气污染要比北京其它地区少。
There's less air pollution in Sunshine Town than in other areas of Beijing.
具 有工艺简单、耗电量少、生产时间短，减少了环境污染的优点。
The invention is simple technics, low power consumption, short producing time and low environment pollution.
本发明方法成本低廉，能耗少、无污染。
The method of the invention has low cost, less energy consumption and no pollution.
膜系统操作简单，占地少，没有二次污染。
Advantages of the membrane system were easy operation, small footprint, no secondary waste...
膜系统操作简单，占地少，没有二次污染。
Advantages of the membrane system were easy operation, small footprint, n...
膜系统操作简单，占地少，没有二次污染。
Advantages of the membrane system were easy operation, small footprint, n...
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