dustless
adj. 无尘的;不起灰尘的
例句
The dustless chalk brush is I-shaped.
所述无尘粉笔刷整体呈“工”字型。
The dustless chalk is of good quality, go and get some more.
这批无尘粉笔的质量不错,再去买一些吧!
Pay special attention to the mold's maintenance when in use, making it dry dustless.
在使用过程中要尤其注重模具的保养,确保干燥、无尘。