English translation for "primary standard sample"

一级标样
原始标准试样

Similar Words：

"primary standard data" English translation, "primary standard fuel" English translation, "primary standard instrument" English translation, "primary standard pyrheliometer" English translation, "primary standard resistance thermometer" English translation, "primary standard solution" English translation, "primary standard sound source" English translation, "primary standard substance" English translation, "primary standard thermocouple" English translation, "primary star" English translation