电热锅炉具有无噪音,无污染,技术先进,绿色环保,制造简单,结构紧凑及安全高效等特点。
Electric heating boilers enjoy the following merits: no noise, no pollution, advanced technology, simple fabrication, compact construction, safe and high efficiency operation, etc.
解决空气污染的方法之一就是制造无污染汽车。
One way to get rid of the polluted air is to make a car without pollution.
另外,激光表面微造型技术以其制造加工速度快、对环境无污染以及优良的形状和尺寸控制能力被认为是表面微造型领域成功的造型方法。
Laser surface texturing(LST) has been the most successful way in surface texturing because of its good performance such as high speed, non pollution and excellent control ability for shape and size.
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