salinity meter短语¹⁴⁴⁹⁷²⁺² 基本例句 盐度计 It's mainly covered the development process of salinity measuring meter of sodium bicarbonate, main characteristics of salinity meter and basic working principles of its circuit. 简要介绍了重碱盐分检测仪的研发过程和检测仪的主要特点及电路基本工作原理。 chemyq