1.
Not have a care in the world, ie have no worries or responsibilities
无尘世之忧（无牵无挂）
2.
The precision instrument must be kept free from dust.
精密仪器必须保持无尘。
3.
The characteristics of dustless compouded lead salt stabilizer are good, and without dust poison.
无尘复合铅盐稳定剂性能优良,无粉尘毒害。
4.
Here is how things stand right now: The Stardust Interstellar Dust Collector( SIDC) is in a storage cabinet in the Stardust Clean Room at Johnson Space Center in Houston.
现在的情况是：星际尘埃收集器（IDC）放在休斯敦约翰逊宇航中心的“星尘”无尘室存储柜中。
5.
Performance, Design and Production of Anti-Static Clean Room Clothing;
防静电无尘功能服装的设计生产与性能研究
6.
The Optimization of Anti-static & Clean Clothing and Pattern Management System;
防静电无尘工作服的结构优化及样板管理系统
7.
a clean nuclear bomb.
无放射性尘埃的原子弹
8.
Waste from anthracite coal mines, consisting of fine coal, coal dust, and dirt.
无烟煤废渣无烟煤煤矿的废弃物，由细粒无烟煤、煤尘和尘土构成
9.
"Clean:Free from dirt, stain, or impurities; unsoiled."
干净的:无灰尘、污迹或杂质的;未污染的.
10.
(of a nuclear weapon) producing little radioactivity
（指核武器）几乎无放射性尘埃的.
11.
The farmer and his family were dusted out
那个农民一家因尘暴而无家可归。
12.
You don't have this scent in the dusty world so you wouldn't know it
"此香尘世中既无,尔何能知!"
13.
With colsed operation, neither dust flying nor spray splashing will appear.
密闭操作，无粉尘飞扬和喷液飞溅。
14.
Dressed in gown of pure bright, you gave me faith that your love will never lie.
一身琉璃白 透明着尘埃 你无瑕的爱
15.
Clean, dry, dust-free bedding should be provided.
要供给清洁干燥无灰尘的垫草。
16.
A steed that raised red dust won the fair mistress' smiles; how many steeds that brought litchi died on the run!
一骑红尘妃子笑,无人知是荔枝来
17.
Automatic Control System Design of Abio-membrane Filtration Dust-cleaner
无机膜分离除尘器自动控制系统设计
18.
I haven't been able to hoover the carpet because my vacuum cleaner is on the blink.
我无法用吸尘器把地毯吸干净，因为我的吸尘器出毛病了。