production dement denseness degree的用法和樣例:
例句
- The association coefficient was taken for the similar degree of amphibians in every two zoogeographical zones.The cluster analysis was taken by group average method.
建立物種有無(wú)分布的二元數據列聯(lián)表,利用聯(lián)合系數表示每?jì)蓚€(gè)地理小區內兩棲動(dòng)物的相似程度,以類(lèi)平均法進(jìn)行了聚類(lèi)分析。