北京地表水样
sample of surface water in Beijing
反应器水样品管
reactor water sample line
钢水样本
material index liquid steel sample
高氯水样
High chlorine water sample
high content chloride water samples
High Cl- water sample
化探水样
chemical exploration water sample
环境水样
water sample
environmental water sample
environmental waters
environmental water samples
environment water samples
Water samples of environment
environmental aqueous sample
Ambient water
environmental water
environment waters
Environmental sample water
Environmental wastewater
Water
environmental samples
环境水样分析
environment water sample analysis
混合废水水样
composite wastewater sample
模拟环境水样
analog environmental water