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- There is a concentration of people in big cities. 大城市人口集中。
- The results show that the concentration of cyanogen can be decreased under the value of contaminant emission standard. 同时,该工艺操作简单,可使废水中的氰浓度一次性降至排放限值以下。
- The brass surface must be free of contamination. 黄铜表面必须未经沾污。
- The operating rooms require stringent conditions in distribution of air flow velocity and temperature and concentration of contaminants. 医院手术室对室内的速度场、温度场及有害气体和细菌的分布有严格的要求。
- Bioremediation is the way of using microorganism to destroy or reduce the concentration of hazardous wastes of contaminated on site. 生物修复即利用微生物降解环境中有毒有害物质或者减少污染物浓度的一种修复方法。
- Phytoaccumulation: The uptake and concentration of contaminants (metals or organics) within the roots or aboveground portion of plants. 植物积累，植物根部或地面部分对污染物（重金属/有机物）的吸收和聚集。
- We believe any level of contamination is unacceptable. 我们认为任何污染物都是不可接受的。
- What is the concentration of salt in sea water? 海水中盐的含量是多少?
- S is the concentration of unpaired nucleotides. S是不配对的核苷酸的浓度。
- The concentration of ethylene is on the high side. 乙烯浓度偏高。
- L-1 was the optimal spraying concentration of. L-1为最佳喷施浓度。
- Q: Does the testing need concentration of the mind? 问:测试时需要集中精神吗?
- They strongly recommended concentration of offer. 他们极力建议集中报盘。
- The exercises demand great concentration of mind. 这种练习要求全神贯注。
- Having a high concentration of acid. 酸性的含高浓度酸的
- Difference of contamination and sprout rate existed among cultivars. 不同品种的污染率和发芽率有一定差异.
- Good: Plant situated away from natural or manmade sources of contamination. 好：厂房位置远离自然或人为的污染源。
- Also, be sure all insulators are kept clean and free of contamination. 而且，还要确保所有的绝缘体清洁、不受污染。
- Low concentration of CDCA does not damage the liver function. 低浓度 CDCA不损害肝功能。
- Freckles are simply concentrations of melanin. 雀斑不过是高浓度的黑色素。
