1)Account of Presence,因含有On2)contg containing,包含，含有3)coverage factor,包含因子4)Hydrocarbon factor,含烃因子5)implicit elements,隐含因素6)ambiguity factor,含混因数
用法和例句
The ISOGuide to the Expression of Uncertainty in Measurement presented two methods to choose a coverage factor: the Welch-Satterthwaite formula method and a simpler approach.