物料是在密闭容器中进行混合、无粉尘飞扬。
Materials are mixed in the airtight container, without dust flying.
系统全封闭，微负压操作，无粉尘飞扬，操作环境好。
Closed system, negative pressure operation, no dust emissions, a good operating environment.
在生产过程中几无粉尘飞扬，可能解决劳动保护和环境污染问题。
No dust flies in the production process, and the problems of labor protection and environment pollution can be solved.
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