The particle velocity distribution in slugging is analyzed, which shows a nearly Maxwellian distribution despite strong heterogeneity in density.

更大規(guī)模上鼓泡的模擬雖受計算量的制約日e色视频在线观看，但能觀察到它從均勻初態(tài)的產(chǎn)生和發(fā)展過程亚洲黄片视屏1234，并與實際定性相符欧美熟妇A片免费看片。

In this paper, nanopowders of rare earth oxides and tungsten were prepared and 0-3 type nano-composit rare earth tungsten thermionic emission materials were fabricated with novel technics. The raw material selection, preparation technic parameter, structure, physical and chemical characteristic, the rare earth distribution and the emission behavior were studied. The influence between the active layer and the thermionic emission performance, rare earth elements diffusion and distribution along depth were investigated in detail. The surplus RE formation and the electron transfer were discussed in theoretically. The thermionic emission current density of the single surplus RE on the active layer was educed. We adopted "liquid-liquid mixing, freeze-drying and two stage-reduction" working step firstly to produce the RE-W nanopowders including La-W powder, Ce-W powder and Y-W powder.

本文采用細化顯微組織的新工藝德国三级片，制備了納米稀土鎢粉末和0-3型納米復(fù)合稀土鎢熱電子發(fā)射材料，探討研究其原料選擇色色色色色色网站、制備工藝及參數(shù)曰韩美女裸体视频A片久久、結(jié)構(gòu)特征、物理和化學特性很黄很污的软件、稀土分布均勻性99国产欧美精品久久久蜜芽、以及熱電子發(fā)射特性；系統(tǒng)研究了稀土元素的高溫擴散情況爱爱小黄片、高溫狀態(tài)下活性層中稀土的縱向深度分布81av视频在线、以及表面活性物質(zhì)和活性層厚度對熱發(fā)射性能的作用；從理論上分析闡釋了超額稀土的形成及其電子的傳遞過程日本又大又粗又长又爽又硬；并從理論上推導了活性層中單個超額稀土的熱電子發(fā)射電流密度18禁止看污污网站在线看。

The spatial distribution of effective root density for Black locust is different from that of Arborvitae,butthe regularity of vertical distribution is same.

在垂直方向上，兩樹種吸收性根系主要分布在距地表0-30cm內(nèi)xxxx在线视频。

In order to determine organic storage and its space distribution characteristics in paddy field of region, on the basis of second soil survey database, the space databases in unit of soil local type were set up by adoption Arcview software, integrated with GIS software, basined on soil type methods and region scale, the distribution of soil organic carbon storages in purple paddy soil of Chongqing were investigated. The results showed that the storage of SOC in Banan district of Chongqing was 6.48×10^6 t and average SOC density in Banan district with 8.31 kg/m^2 was higher than that of China.

為了明確區(qū)域稻田土壤碳庫蓄積量及其空間分布特征，以全國第二次土壤普查數(shù)據(jù)資料為基礎(chǔ)wWW,性色,COM，運用地理信息系統(tǒng)軟件Arcview建立研究區(qū)以土種為單位的空間數(shù)據(jù)庫人人看操，結(jié)合GIS空間分析功能，基于土壤類型法估算重慶市巴南區(qū)稻田土壤有機碳儲量及其空間分布特征最新日韩精品第二页视频在线播放网站，結(jié)果表明：研究區(qū)稻田土壤有機碳總儲量約為6.48×10^6t一级黄日本C爱视频，平均土壤有機碳密度為8.31kg/平方公尺，略高于全國平均水平亚洲中文久久无码精品91。

We extracted data about environmental factors of 90 Chinese Chiroptera species at known distribution points by using GIS,and conducted PCA and stepwise regression analyses to evaluate impacts of these environmental factors on geographical distribution and species density of Chinese Chiroptera.

利用地理信息系統(tǒng)提取了中國翼手目90個物種已知地理分布點的環(huán)境因子數(shù)據(jù)天堂婷婷久久香蕉狼人，并利用主成分分析和逐步回歸分析研究了這些環(huán)境因子對中國翼手目動物地理分布和種數(shù)密度分布的影響程度。

When picking information.those factors should be taken into consideration.(1)The kinds of rock and its distribution,(2)Geomorphy and slope class,(3)The landcover calss and grading,(4)The landuse class,(5)The townand city distribution and population density,(6)Hydrologic condition and rainfall.

信息采集時必須考慮的主導因子有：（1）巖石類型及空間分布在线A级毛片无码免费真人版；（2）地貌類型及坡度等級艹你综合；（3）植被覆蓋類型及等級；（4）土地利用類型日韩精品第7页；（5）區(qū)域城鎮(zhèn)分布及人口密度中国操逼操逼多黄片；（6）水文條件、降雨量把腿扒开做爽爽视频APP。

The distribution density of oil cells, the distribution types of oil cells and mucilage cells and their localization in the mesophyll are of some taxonomic value at the specific level in the Lauraceae.

油細胞的分布密度国内精品国产三级国产aA、油細胞與粘液細胞是否共存、是否單獨存在或無欧美色视频一区5区，以及其具體分布部位等方面在種間存在一定的差異人人摸人人操人人喊，這對于屬以下等級的區(qū)分具有一定意義欧美性情在线观看视频。

We found, GLP-1-IR cells in various guts of rat, pig and foetus of human with distribution scatteredly among the basal portion of intestinal glands. The cell shape corresponded with open type cells, i.e. L-cells. The density of GLP-1-IR cells was different in races, but the distribution regularity of GLP-1-IR cells was same. It showed that a continuous increase from the proximal to the distal portion of small and bowel.

結(jié)果發(fā)現(xiàn)：在各段腸管都可見到GLP-1-IR細胞；GLP-1-IR細胞散在于腸腺的柱狀上皮細胞之間免费看毛视频，多位于腸腺的基底部AV网址导航，呈開放型內(nèi)分泌細胞形態(tài)，即L細胞免费看黄色网站大全；不同種屬問GLP-1-IR細胞密度不同三级无码视频进入，但分布規(guī)律相同，即自小腸和大腸的近端向遠端逐漸增大国产精品黄色网站一级大片手机版免费看。

The results showed that small-scale gaps were the predominant types of disturbance. The average gap density was 12.5 km^(-1). The distribution pattern of gaps was aggregated on south facing slopes and was approximately homogeneous on north facing slopes. Conifer trees were the primary gap-makers in this forest that was dominated by Abies faxoniana, Tsuga chinensis, Betida utilis, both in abundance and diameter rank. The decay class distribution of gap-makers indicated that the mode of gap formation and gap-maker species changed with age of the forest; the contribution of conifer species to gap formation decreased with time and broadleaf species increased.

結(jié)果表明：l本區(qū)以小型林隙干擾為主国产精品一区二区三区视频，林隙平均密度為12.5個km^(-1)，林隙的分布格局在陽坡和山脊為集聚分布日韩色色图，陰坡近均勻分布日韩欧美一级特黄AAAAA片；林隙形成木以針葉樹為主，岷江冷杉日韩在线观看自拍网页视频、鐵杉和糙皮樺在形成木的數(shù)量和徑級組成上均居前列肏女人逼12p。2林隙形成木的腐爛等級分布揭示出林隙形成木的形成方式和種類組成均隨時間變化。

It can be seen that mercury contents in sulfides of the density fractions are different from each other in the same coal, which implied that mercury is distributed in sulfide unhomogeneously. The reasons of the unhomogeneity of mercury distribution in sulfide may be that mercury exist in sulfide in form of submicrometer size individual mineral such as cinnabar, and not in form of solid solution in pyrite, or that in coal, there are multi-stage and multi-origin sulfides among which the distribution and modes of mercury are different from each other.

這種差異性說明煤中黃鐵礦中汞的分布是不均勻的美女被操免费看，這表明：汞在黃鐵礦中可能不是以固溶體形式存在大量国产真实在线视频，而可能是以細小的呈機械包裹物的獨立礦物形式賦存于黃鐵礦中；或者煤中存在多期人人泡人人干人人操、多成因的黃鐵礦亚毛基地，不同期次成因的黃鐵礦間汞的分布和賦存狀態(tài)具有差異性。