sampled grade 中文意思是什麼
sampled grade
解釋
試樣品位-
Six classes, one from each grade, from the selected schools were systematically sampled, and the whole class filled in the questionnaire in school
每間學校再每級抽取一班，共六班，並邀請樣本班別所有學生參與是次問卷調。 -
Sampling : grade and staple : 10 % to be sampled at random for each lot of bales ; micronaire and strength : one half of the 10 % is to be sampled at random for each bunch of bales
抽樣：品級、長度：從每批棉包中隨機抽樣10 ；馬克隆值和強度：從品級、長度抽取的樣品中隨機抽取其樣品總量的一半，作為馬克隆值和強力的檢驗樣品。
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