例句與用法

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1. Gradient analysis and environmental interpretation of woody plant communities in the middle section of the northern slopes of qilian mountain , gansu , china
   祁連山北坡中段森林植被梯度分析及環(huán)境解釋
2. It is found that the mesoscale mountain has significant influence on the location and intensity of the heavy rain area , and the bell - mouthed area and the riverway area of xichang are favorable to the occurrence and development of mesoscale disturbance and heavy rain
   地形梯度分析表明，西昌地區(qū)所處的河谷地形和場區(qū)所處喇叭口小地形，有利于中小尺度氣壓擾動的發(fā)生、發(fā)展和暴雨的產(chǎn)生，當(dāng)?shù)匦翁荻葴p弱時，降水量相應(yīng)減弱。
3. So if dca combines with classified methods , the ordination effect on samples and species is better than that of dcca and cca . 2 . fso study on plant communities : we applly fuzzy set ordination ( fso ) to analyze the environmental factors and vegetation data
   植物群落的模糊數(shù)學(xué)排序研究：運用模糊數(shù)學(xué)排序?qū)拥氐沫h(huán)境因子和植被數(shù)據(jù)進(jìn)行了直接梯度分析，結(jié)合twinspan分類結(jié)果，與dcca比較，模糊數(shù)學(xué)排序直觀的得出了環(huán)境因子和植物群落間的關(guān)系，分辨率較高。
4. The coupled turbulent flow field and temperature field are simulated by finite element method ; the influence of casting speed on the turbulent flow field and temperature field in the melting bath and the interaction between those two field are analyzed ; the variation tendency of the heat flux intensity between the melting bath and casting roll and law of variation with changes of casting speed in the process of solidification are given ; a comparison between the simulation results and experimental results demonstrates their good agreement ; and the mechanism of the heat flux variation is identified by analysis on the temporature gradient and development of solidification within the melting bath and its influence on the variation of the heat flux intensity
   采用有限元法模擬了雙輥鑄軋不銹鋼過程的流熱耦合問題;分析了鑄軋速度對熔池內(nèi)流場、溫度場的影響以及流場與溫度場之間的相互影響;給出了凝固過程中熔池與鑄軋輥之間的熱流密度變化趨勢及隨鑄軋速度的變化規(guī)律,并把此模擬的結(jié)果與試驗的結(jié)果相比較,吻合較好;通過熔池內(nèi)溫度場及溫度梯度分析了熔池內(nèi)凝固的發(fā)展及其對熱流密度變化的影響。
5. 3 eight communities are identified by gradient analysis in desert - oasis ecotone , and species are divided into 5 ecological groups . dca ordination is superior to cca and dcca . variation of vegetation explained by environmental and spatial factors reaches 23 . 4 % ; among these the species matrix explained by non - spatial soil factors account for up to 11 . 5 % of variation , spatial variation that is not shared by soil factors explains up to 11 . 6 % , their interaction explains up to 0 . 3 %
   3 、通過梯度分析，阜康荒漠綠洲過渡帶群落可分為8個類型，物種可分成5個生態(tài)類型； dca排序效果優(yōu)于cca和dcca ；土壤和空間因子解釋了植被分異的23 . 4 ，其中土壤因子占11 . 5 ，空間因子占11 . 6 ，二者交互作用占0 . 3 。