English translation for "primary standard instrument"

一次标准仪器

Similar Words：

"primary stage port" English translation, "primary stage syphilis" English translation, "primary standard" English translation, "primary standard data" English translation, "primary standard fuel" English translation, "primary standard pyrheliometer" English translation, "primary standard resistance thermometer" English translation, "primary standard sample" English translation, "primary standard solution" English translation, "primary standard sound source" English translation