To investigate the spatial-dependence of heterogeneity at multiple scales for a community, we selected a representative plot of 100 m×100 m in the mountainous evergreen and deciduous mixed broad-leaved forest in Sichuan, southwest China (102°50'E, 30°02'N).The location of every tree was mapped by compass, and all-scale analysis of spatial structure of forest community was conducted by the method of PCNM (principal coordinates of neighbor matrices).

為了解植物群落在多尺度下的空間變異規(guī)律及其對(duì)空間尺度的依賴国产一级婬片A片免费无码百度，以川西南山地闊葉混交林為對(duì)象能看的黄色网站福利，在有代表性的地段設(shè)立100m×100m樣地国产二区视频在线观看，采用傳統(tǒng)的羅盤儀對(duì)樹體的相對(duì)空間位置進(jìn)行定位A级野外黄色网，運(yùn)用主軸鄰距法(principal coordinates of neighbor matrices， PCNM)對(duì)群落空間結(jié)構(gòu)的多尺度（100m內(nèi)）特征進(jìn)行了研究欧美A片在线观看网站视频。

The old types oil pumping unit has many problems including over big torque and rod load peak at point of suspension , large heterogeneity and poor dynamic performance .

為解決在用的老型號(hào)抽油機(jī)存在的扭矩和懸點(diǎn)載荷峰值大欧洲亚洲美洲Va国产综合，不均勻程度高，動(dòng)力學(xué)性能較差等問題開展了抽油機(jī)柔性拖動(dòng)控制技術(shù)研究與試驗(yàn)精品欧洲国产Av高潮。

The study shows:(1) the generation of sulphur-bearing gas is controlled by the formation water;(2) the present distribution of hydrogen sulphide is the result of the segregation of water and gas, and it is also influenced by the heterogeneity of reservoirs;(3) the limited distribution of formation water is an important mechanism for forming gas fields of low sulphur content in China.

該問題的研究說明：①靖邊氣田含硫天然氣生成過程始終受地層水控制国产精品三级片网站；②現(xiàn)今硫化氫分布是氣水分離結(jié)果，并受儲(chǔ)層非均質(zhì)限制www.jizz中国；③揭示地層水體分布的局限性可能是形成我國低含硫氣田的一個(gè)重要機(jī)制欧美888视频免费。

Because of the body's attachment, the athletes' attributes of human capital is derived as follows: self-initiative and motility, personal property attributes and mobility, timeliness, heterogeneity and sociality.

由于對(duì)人體的附著又派生出自利性與能動(dòng)性、個(gè)人產(chǎn)權(quán)屬性和流動(dòng)性成人特级毛片下载、時(shí)效性特级毛片永久久免费观看、異質(zhì)性、社會(huì)性AV天堂无码一区二区三区。

Many tree species at the same time and solve the spatial heterogeneity which empirical method could not achieve. Therefore, the assessment method could be applied in the selection of species for afforestation or species selection in the forest restoration areas.From collecting the attributes of planting species, spatial distribution data and environmental factors, we could integrate and analyze the data for further simulating the forest dynamics of forest in Taiwan. The impact of global change on forest also could be evaluated.

應(yīng)用生育地因子評(píng)估樹種之生態(tài)地位亚洲免费视频二，能解決統(tǒng)計(jì)實(shí)證方法在空間異質(zhì)性使用的限制，并可同時(shí)評(píng)估多種樹種性爱在线欧美，因此可應(yīng)用在造林樹種之選擇成a免费视频大全，亦可應(yīng)用於崩塌地復(fù)育造林樹種之選擇，以及林相改良造林樹種之選擇日韩看片自拍视频，在收集更多樹種屬性與空間分布資料后欧美一级二级三级网站大全，配合此評(píng)估方法，未來更可模擬出臺(tái)灣森林之動(dòng)態(tài)色妞精品一级，以及評(píng)估環(huán)境變遷對(duì)臺(tái)灣森林所造成的影響一级特黄毛片视频播放一区二区。

The effects of gas-liquid ratio, oil saturation and permeability on nitrogen foam flow law in porous media were studied systemly. Oil saturation is the main influential factor of foam's fluidity, and just for this, the aggravation of formation heterogeneity has little effect on the effect of the profile control, foam's flow law is decided by remaining oil distribution.

系統(tǒng)研究了氣液比、含油飽和度禁止18岁以下看的黄片、滲透率對(duì)氮?dú)馀菽瓭B流規(guī)律的影響免费h在线观看视频网站，結(jié)果表明，含油飽和度是影響氮?dú)馀菽瓭B流阻力的最主要因素91精彩视频，泡沫滲流阻力隨著含油飽和度的升高而降低日日插人人操天天拍，剩余油分布規(guī)律決定了調(diào)驅(qū)過程中氮?dú)馀菽臐B流規(guī)律，受此影響人人干人人射人人，地層非均質(zhì)性的增加對(duì)泡沫調(diào)剖效果的影響較小91影视18以下禁在线观看。

The results show that the native copper in North America has very low Pb content and exists obvious heterogeneity of Pb even in a single ore sample.

這對(duì)于區(qū)分北美遺址出土的北美自然銅銅器和歐洲冶煉銅銅器具有重要意義。

The results show that the native copper in North America has very low Pb content and exists obvious heterogeneity of Pb even in a single ore sample.

分析結(jié)果表明欧美老妇女操逼视频看看，北美自然銅鉛含量極低久久毛片网站，且同一礦區(qū)甚至同一樣品內(nèi)部鉛含量存在明顯的不均勻性。

Secondly, considering the complexity and heterogeneity of rock-like materials, two new models, namely the Inner Open Sliding Crack Model and the Single Wing Crack Model , are proposed. The two new models and the well-known Sliding Crack Model are consolidated as Zigzag Crack Model in this dissertation.

第二国产日B视频网站，針對(duì)巖石類材料的復(fù)雜性和非均質(zhì)性提出兩種新的模型：內(nèi)張型滑動(dòng)裂紋模型和單翼滑動(dòng)裂紋模型乱伦小说网尤物视频亚洲，并將這兩種模型和經(jīng)典滑動(dòng)裂紋統(tǒng)一為鋸齒形裂紋模型国产一区清纯美女在线观看。

Scattering wave ; scattering theory ; heterogeneity ; scattering characteristic ; metallic ore

散射波；散射理論摸女生下体高潮喷水视频；非均勻性欧美不卡一区二区三区手机；散射特征；金屬礦