例句與用法

更多例句：  上一頁  
1. And the populations of p . cicutarrifolia exhibit clumped distribution in zhejiang , hubei , jiangxi , anhui etc . furthermore , the population size is small , and its number is scare , and every population is n ' t dominant in its community , which resulted in their endangered state , for which habitat fragment and artificial damage are mainly responsible
   安徽羽葉報春呈斑塊狀分布于安徽黃山、石臺、休寧、寧國、涇縣、歙縣、黟縣等南部山區(qū)，毛茛葉報春呈島嶼狀分布于浙江、安徽、湖北、江西等省。兩物種種群少且種群小，在群落中都不占優(yōu)勢。
2. The competition among those species like s . tsinyunensis , dryopteris erythrosora and veronicastrum stenostachyum etc . , is intense in the communities , which may be one of the reasons why s . tsinyunensis is going to be endangered and with a very restricted distribution . the distribution patterns of the seven populations of s . tsinyunensis are clumped among the eight populations we studied , except population v of random distribution . the spatial pattern of 6 populations of s . tsinyunensis have high consistency with the negative binominal distribution , while another 2 populations , i . e . , i and iii are poisson distributions
   6 )縉云黃芩各種群空間分布格局基本呈聚集分布，其中7個種群的分布格局類型是聚集分布，其聚集強度較高，另有一個種群為隨機分布；其種群的離散分布擬合結果也嚴格符合一定的數學模式，其中負二項分布、 poisson分布分別是該物種種群空間分布的理論分布模式，其中6個種群擬合出的結果是負二項分布，種群i和種群m擬合出的結果是poisson分布。