n.液体比重测定法...

A solution of hydrometry monitoring based on GPRS technology is introduced.提出了一种基于GPRS技术的水情监测系统解决方案....

hydrometry的音标：hydrometry的英式发音音标为：[haɪ'drɒmɪtrɪ]hydrometry的美式发音音标为：[haɪ'drɒmɪtrɪ]...