electron population中文什么意思

electron: n. 【物理學(xué)】電子。 the electron bea ...
population: n. 1.人口；人口總數(shù)；全體居民；人口的聚居。 2.物 ...
electron population analysis: 電子群體分析
population: n. 1.人口；人口總數(shù)；全體居民；人口的聚居。 2.物的全體[總數(shù)]；【生物學(xué)】蟲(chóng)口；種群(量)；群體；族，組，個(gè)數(shù)；【統(tǒng)計(jì)學(xué)】對(duì)象總體，全域。 3.【物理學(xué)】布居；密度。 4.〔罕用語(yǔ)〕殖民。 varietal populations 品種群體。
electron: n. 【物理學(xué)】電子。 the electron beam 電子束。 the electron theory 電子(學(xué))說(shuō)。

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Using the two - stream fluid model , the linear dispersion relation is derived assuming a two - dimensional spatial geometry . two cases are considered , one is that the 2d spatial geometry is defined by the plane containing the two counterstreaming electron populations and the perturbation wave vector ( referred as the xy plane ) , and the other is that the geometry is defined by the plane being vertical to the two counterstreaming electron populations ( referred as the yz plane )
對(duì)高能束流和電子回流構(gòu)成的雙流系統(tǒng)，建立冷等離子體流體模型，采用簡(jiǎn)正模分析方法，分別考慮擾動(dòng)波矢在平行于電流傳播方向的平面(記為xy平面)上和在垂直于電流傳播方向的平面(記為yz平面)上這兩種情況，推導(dǎo)了不穩(wěn)定性的色散關(guān)系。

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