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adj.无尘的；不起灰尘的
1、dustiness───n.灰蒙蒙；多灰尘；尘污
2、lustless───无光泽
3、dauntless───adj.无畏的；勇敢的；不屈不挠的
4、doubtless───adv.无疑地，肯定地；大概；adj.无疑的，确定的
5、guestless───adj.无来客的
6、ductless───adj.无导管的
7、rustless───adj.不生锈的；无锈的
8、crustless───adj.无硬皮的；无外壳的
9、gustless───无阵风
1、The look from her eye is still so pure , like a dustless crystal .───她的眼神依旧清纯，仿佛水晶般的纤尘不染。
2、High-pressure water jet cutting has advantages of narrow cuts, no thermal stress, dustless and cutting any materials.───高压水射流切割具有切缝窄、不产生热应力、无粉尘、几乎可切割任何材料等优点。
3、May. Be like a dustless mirror that clearly refects everything, but on which nothing adheres.───五月「要做无尘的反射镜，明鑑一切物，不沾一切物。」
4、be a dustless mirror that reflects the world as it is with no distortion.───要做无底的垃圾桶，要学无尘的反射镜。
5、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。
6、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！
7、Be like a dustless mirror that clearly reflects everything, but on which nothing adheres.───要做无尘的反射镜，明鑑一切物，不沾一切物。
8、The dustless chalk brush is I-shaped.───述无尘粉笔刷整体呈“工”字型。