air cleanliness空气洁净度
surface cleanliness表面洁净度;表面清洁度
inclusion cleanliness夹杂物清结度
fuel cleanliness燃油清洁度
Baseline cleanliness基准清洁
CleanlinESS S清洁度
Cleanliness detection洁净度检测
visible cleanliness[化学] 可见纯净度
Turbine oil system cleanliness solution has been the chronic problem of all plants.
解决汽轮机油系统清洁度的问题一直是各电厂老大难问题。
参考来源 - 电厂汽轮机油系统冲洗工艺探讨Before the system running and after one year, the cleanliness measured by airborne particles and settling microbe were both 7 grade according to GB50073-2001 and GB/T 16294-1996.3.
该组培室正式运转前和运转一年后，室内的悬浮粒子和沉降菌指标均达到洁净度国家标准7级。
参考来源 - 密闭式人工光组培室的环境控制与洁净技术的研究N-UNCOUNT（不可数名词） Cleanliness is the degree to which people keep themselves and their surroundings clean. 清洁
Many of the state's beaches fail to meet minimum standards of cleanliness.
该州的许多海滩没能达到最低清洁标准。