共 50 条
[12]
STANDARDIZATION OF METROLOGICAL CHARACTERISTICS FOR ELECTRONIC-ENERGY METERS
[J].
MEASUREMENT TECHNIQUES USSR,
1983, 26 (06)
:500-501
[15]
THE STANDARDIZATION OF PH MEASUREMENTS
[J].
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY,
1994, 349 (8-9)
:603-606
[18]
The Early Development of Electronic pH Meters
[J].
JOURNAL OF CHEMICAL EDUCATION,
2010, 87 (11)
:1143-1153