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- control chemical analysis 控制化学分析
- Chemical analysis using electrolytic techniques. 电解分析以电解法进行的化学分析
- Detectable only by microscopic examination or chemical analysis, as a minute blood sample. 通过显微镜观察测知的只能通过显微镜观察或化学分析才能发现的，如微量的血样
- They made spectroscopy a primary tool of chemical analysis. 他们使光谱学成为化学分析的主要工具。
- Quality control:material chemical analysis,physical detection,hardness measurement,crevasse detection,metallurgical phase detection. 质量控制：材料化学分析，物理检测，产品硬度检测，裂纹检测，金相检测。
- Gravimetric methods (including barium sulfate weight method and baryta yellow weight method) in chemical analysis methods are used in daily control. 日常检测较常用的是化学分析中的重量分析法（包括硫酸钡重量法、铬酸钡重量法）。
- You can ask for a chemical analysis of your tap water. 你可以要求给你的自来水做化学分析。
- Chemical analysis of manganese ores. Determination of lime. 锰矿石的化学分析。氧化钙的测定。
- Familiar with various plating processes and chemical analysis. 熟悉各种电镀工艺和化学分析。
- Soil Chemical Analysis on the Process of Soil Acidification. 土壤酸化过程的土壤化学分析
- Method: to adopt the HPLC and chemical analysis method. 方法:高效液相色谱法和化学分析法。
- After chemical analysis,we know the constituents of ore. 经过化学分析，我们知道了矿石的构成。
- Thoroughly control chemical substances, and reduce their impact on the environment. 关于化学物质,进行彻底管理和努力减轻环境负荷。
- The key of such measures is to strictly control chemical composition and to conduct proper nodulizing treatment, inoculation and cooling treatment. 成功的关键就是对球墨铸铁的化学成分的控制,并配合适当的球化、孕育及冷却处理。
- Neutron activation or chemical analysis for uranium are used as a follow-up. 中子活化分析和化学分析铀可作为进一步追索的方法。
- Plant activator can activate the disease defence system of plant - an unuasual mode of action for a disease control chemical. 植物激活剂是一类能诱导植物抗病性的药剂,作用机制独特。
- Zinc ingots. Selection and preparation of samples for chemical analysis. 锌锭。化学分析用样品的制备和抽样。
- However, they also Have some defects such as lower blue-sensitivity, liable to fog, hard to control chemical ripening and inferior storage stability xtc. 但它也有一些严重的缺点,如感光度较低、易引起灰雾、难以控制化学成熟以及贮存稳定性较差等。
- CHEMICAL ANALYSIS OF MANGANESE ORES. GRAVIMETRIC DETERMINATION OF BARIUM OXIDE. 锰矿的化学分析。氧化钡的重量法测定。
- Chemical analysis of manganese ores. Gravimetric determination of manganese. 锰矿石的化学分析。
