您要查找的是不是:
- Research methods about standard samples of water quality determination of Kjeldahl nitrogen were put forward. 提出了水质凯氏氮标准样品的研究方法。
- Water quality - Determination of cyanide index. 水质。氰化物指数的测定。
- It is suitable for determinations of water quality and evaluations of biocide, and is worth popularizing. 适用于水质检测、杀菌剂评价,是值得推广的一种好方法。
- Water quality - Determination of chemical oxygen demand (COD). 水质。氧的化学消耗量的测定(重铬酸钾法)
- Water quality - Determination of dissolved carbon dioxide. 水质。溶解二氧化碳含量的测定。
- Determination of water absorption coefficient by capillarity. 标准/规范英文名: Natural stone test methods.
- Factor Affecting the Determination of Water Quality Total Nitrogen by Alkaline Potassium Persulfate Digestion 碱性过硫酸钾法测定水质总氮的影响因素
- Optimum Conditions of Water Quality Determination of Ammonia-Nessler's Reagent Colorimetric Method 纳氏试剂光度法测定水中氨氮实验条件的优化
- Method for determination of sampling frequency of routine monitoring of water quality 水质常规监测采样频率确定方法研究
- Water quality - Determination of the toxic effect of water constituents and waste water on duckweed (Lemna minor) - Duckweed growth inhibitiontest 水质。水和废水的毒性对浮萍生物(青萍)影响的测定。浮萍生长抑制试验
- There were serious potential hygienic risks of water quality. 自贡市乡镇自来水厂的水质存在严重的卫生安全隐患。
- Water quality - Determination of dissolved oxygen - Electrochemical probe method. 水质。溶解氧的测定。电化学探针法。
- In this paper we discuss computer handle about water quality - determination of dissolved oxygen - de-termine date. 关键词:水质,溶解氧,测定,计算机处理|全部关键词
- Determination of water content.Azeotropic distillation method. 英文名称: Surface active agents and soaps.
- determination of water quality 水质测定
- He lifted a pail of water from the ground. 他把一桶水从地上提了起来。
- A dash of water in his face will revive him. 向他脸上泼水能使他苏醒。
- The pipe burst and a spout of water shoot out. 水管破裂了,一股水喷了出来。
- A cloud is a condensation of water vapour. 云是由水蒸汽凝缩而成的。
- The main factors influencing the accuracy of the determination of permanganate index, include acidity of sample, water distilled water quality, potassium permanganate concentration, water bath temperature and titration time. 摘要影响高锰酸盐指数测定准确性的主要因素有样品酸度、蒸馏水水质、高锰酸钾溶液浓度、水浴加热温度和滴定时间。