detecting nitrogen instrument

• 定氮仪

detecting nitrogen instrument的用法和样例：

例句

1. The research results indicated that the automatic Kjeldahl apparatus method was an accurate and reliable method for determination of ammoniacal nitrogen in silage.
   研究结果证明，自动凯氏定氮仪法是一种准确可靠的青贮饲料中氨态氮检测方法。