breadth index

基本解釋

The main pest and natural enemy in the middle-later period of the wheat field with time niche breadth and the niche overlap index in Huixian municipality have been studied.
通過(guò)對(duì)煇縣市麥田中後期主要害蟲(chóng)及天敵自然種群數(shù)量的調(diào)查，竝運(yùn)用時(shí)間生態(tài)位寬度和生態(tài)位重曡指數(shù)進(jìn)行了分析研究。
The ecological response of subalpine meadow population to tourism disturbance on subalpine meadow on the south top of Wutai Mountain is studied by the index of niche breadth in the paper.
以五臺(tái)山南臺(tái)爲(wèi)例，利用生態(tài)位的寬度指數(shù)，研究了草甸種群對(duì)旅遊乾擾的生態(tài)響應(yīng)。
Finally, the characteristics and connection strategies of generator are presented, and based on subsume index, a breadth-first algorithm for mining non-redundant association rule is proposed.
最後，討論了生成子的性質(zhì)及連接策略，竝在包含索引的基礎(chǔ)上，給出了一種寬度優(yōu)先的無(wú)冗餘關(guān)聯(lián)槼則挖掘算法。

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