在每次酸浸操作中，应该将同种材质的试样放置在加入缓蚀剂的溶液内检查清洁程度。
During each acid pickling operation a sample piece of same material shall be kept inside the inhibited acid solution in the tank to check the quality of cleaning.
采用碳酸钠熔融分解样品制成待测试样溶液，同时用于测定中变催化剂中的铁、。
Sample solution is made by decomposing the sample of melted sodium carbonate, which is used to confirm the contents of iron, chromium and molybdenum in MT shift catalyst.
本文提出了以氢化物与硝酸银反应为基础的在一份试样溶液中连续测定微量砷和铅的分光光度法。
The continuous determination of arsenic and lead in the solution of the same sample by spectrophotometry is described, based on the reaction between hydrides and silver nitrate.
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