A truly extraordinary variety of alternatives to the chemical control of insects is available 除了用化学方法控制昆虫以外,还有其他各种非常奇妙的方法可以利用
Chemical cleaning is using of chemicals and chemical methods to achieve the purpose of cleaning equipment 化学清洗是指利用化学方法及化学药剂达到清洗设备的目的。
As for surficial decoration for carbon nanotubes also used chemical method , that is , electroless plating 对碳纳米管的表面修饰也是采用化学方法，即化学镀的方法。
Analysis of aluminium ores - chemical methods - method for determination of titanium content : spectrophotometric method 铝矿石分析.化学方法.钛含量测定方法:分光光度分析法
Analysis of aluminium ores - chemical methods - method for determination of phosphorus content : spectrophotometric method 铝矿石分析.化学方法.磷含量测定方法:分光光度分析法
Edta analysis of aluminium ores - chemical methods - method for determination of aluminium content : edta titrimetric method 铝矿石分析.化学方法.铝含量测定方法:乙二胺四乙酸
Soil quality . chemical methods . determination of copper , manganese , zinc and iron . extraction in presence of dtpa 土壤质量.化学方法.铜锰锌铁含量的测定.在有dtpa情况下的萃取
Analysis of aluminium ores - chemical methods - method for determination of loss of mass at 1075 c : gravimetric method 铝矿石分析.化学方法. 1075下的质量损失的测定方法:重力分析法
The specimen in the experiments was manufactured with nafion - 117 ( dupont ) deposited two times with platinum Ipmc试样是以nafion - 117薄膜为基底材料利用化学方法沉积pt离子制备的。
Soil quality - chemical methods - determination of dry matter and water content on a mass basis by a gravimetric method 土质.化学方法.采用重力法以质量为基础的干物质和水含量的测定
