在未固化的粉末涂装工件表面固体污染物是看不见的，涂膜一旦固化则变得十分明显。
In not curing powder coating surface of workpiece solid pollutants is invisible, the film became very obvious once curing.
所有这些固体污染物都可能堵塞细小的孔、空气管路、设备和阀门，也造成粉末涂装工件的污染。
All these solid pollutants may jam tiny hole, air lines, equipment and valve, also caused the pollution of powder coating workpieces.
通过电从水中提取氢气和氧气，氢气做为燃料，氧气助燃，燃烧的产物仅为水蒸气，不对加工的工件产生污染。
The product generate hydrogen and oxygen by electrolyzing water, hydrogen as fuel, oxygen as auxiliary combustion, the combustion products are just water vapor, and not pollute the workpieces.
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