Uses the import molding tool steel vacuum treated.
采用进口模具钢真空处理。
To test this self-cleaning property, Guo and his team took ordinary dust from a vacuum cleaner and dumped it onto the treated surface.
为了测试材料的自洁性能，郭教授和他的团队将吸尘器里取出的普通灰尘洒在加工过的材料表面上。
The prepared films were treated by vacuum annealing, and the structure of films before and after annealing was studied by Raman Spectrum.
对制备的薄膜进行了真空退火处理，并对退火前后的薄膜进行了拉曼结构分析。
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