那个病人住在无尘病房。
精密仪器必须保持无尘。
穷到拍壁无尘。
这批无尘粉笔的质量不错，再去买一些吧！
The dustless chalk is of good quality, go and get some more.
泡绵无尘切割。
在无尘环境下加工而成。
在使用过程中要尤其注重模具的保养，确保干燥、无尘。
Pay special attention to the molds maintenance when in use, making it dry and dustless.
在使用过程中要尤其注重模具的保养，确保干燥、无尘。
Pay special attention to the mold's maintenance when in use, making it dry dustless.
供应无尘喷漆房，喷房生产线，喷涂设备。
Supply of clean spray booth, spray room production line, spraying equipment.
供应无尘喷漆房，喷房生产线，喷涂设备。
Supply of clean spray booth, spray room production line, spraying equipment.
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