The niche breadths of same plants vary greatly among different communities and the competitive relations of the plant species in different communities vary depending on the combined actions of the niches of the species, stable landforms and soil conditions, and annual rainfall fluctuations.

同一種植物在不同群落中的生態(tài)位寬度變幅較大国产欧美日韩A片，不同群落內(nèi)部植物種競爭關(guān)系的差異是由物種的生態(tài)位和由相對穩(wěn)定的地貌亚洲精品亚洲人一成在线、土壤條件以及隨年際變動(dòng)的降水條件共同作用的結(jié)果。

With perturbation shifting circumferentially step by step, the subsonic flows around slender bodies of revolution vary gradually in manner of single periodicity,while the supersonic flows vary gradually in manner of double periodicity.

由于臨界周向位置的存在国产精品久久婷婷人人爽，隨微小擾動(dòng)沿周向逐漸移動(dòng)免费黄色在线观看网站，細(xì)長旋成體大攻角亞音速繞流呈現(xiàn)為"單周期、連續(xù)變化"規(guī)律大色欧美，而超音速繞流則呈現(xiàn)為"雙周期人人做人人叼嘿、連續(xù)變化"規(guī)律。

The prices vary from few dollar to hundreds dollars.Vary from...to...

這些商品的價(jià)格從幾美元到數(shù)百美元不等午夜三级A三级三点自慰。

Sows do vary in terms of the length of heat short, normal and long, hence the number of inseminations may vary.

母豬不上各不相同的長度熱短国产91在，正常的和長期的，因此人數(shù)授精可能會(huì)有所不同老妇女性较大毛片视频A片那里有。

According to research into the regional geochemical characteristics of the northern Xinjiang (they consist of abundance valve and vary coefficient of element, distribution of element among stratum and magmatite, regional anomalous geochemical characteristics), the author discuss vary regular pattern of element and geochemical anomalies among different stage of stratum and magmatite in the northern Xinjiang.

摘要對新疆北部區(qū)域地球化學(xué)基本特征―元素的豐度值最新国产精品视频网站、變化系數(shù)、元素在地層及侵入巖中的分布規(guī)律五月草视频、元素共生組合久久精品国产精品久久96、區(qū)域地球化學(xué)異常特征的研究，闡明了新疆北部區(qū)域上日韩欧美,另类、不同時(shí)代地層及巖漿巖中元素及地球化學(xué)異常的變化規(guī)律亚洲中文字幕乱码在线精品。

To combines the advantages of vary marble such as high hardness material, large rang of application, especially stairstep, counter top can process vary lace.

大理石包邊復(fù)合板綜合以上各種材質(zhì)大理石的優(yōu)點(diǎn)，材料堅(jiān)硬黄片理论，應(yīng)用范圍更廣韩国日本在线精品网站。尤其是樓梯踏步，室面板99久久99视频免费，可加工各種花邊啊啊啊啊www。

Camshaftless valve actuation includes electromagnetic,electrohydraulic,electropneumatic and electromechanical types.it could vary valve timing agilely,simplify the engine's structure,deactivate some of the engine's cylinders selectively and vary the effective compression ratio flexibly to adapt different fuels.So it could offer more advantages than general variable valve timing.

闡述了在發(fā)動(dòng)機(jī)上以電磁、電液男人天堂美女抽查插、電氣或其他方式驅(qū)動(dòng)氣門久草巨乳，實(shí)現(xiàn)無凸輪軸氣門驅(qū)動(dòng)，可以靈活改變氣門正時(shí)免费不卡一级A片，簡化發(fā)動(dòng)機(jī)結(jié)構(gòu)精品国性色无码AV网站，能有選擇地閉缸，靈活改變發(fā)動(dòng)機(jī)有效壓縮比以適應(yīng)多種燃料要求精品国产日韩欧美精品制服，使發(fā)動(dòng)機(jī)獲得比采用一般可變氣門驅(qū)動(dòng)更多的好處www.//黄片视频免费。

The operations used in this group include neurolysis,epineurial repair,epineurial-fascicular repair,fascicular repair and nerve grafting.Results:All cases were followed-up after 18 months to 60 months and the excellent rate was 80.4％.Conclusions:Those result indicated that the preceded microsurgical repair of peripheral nerve injury is an effective method for raising the excellent rate of peripheral nerve injuries,and for vary nerve,different section of nerve injured,very nature of nerve injury,the method are vary.

目的：分析應(yīng)用顯微外科技術(shù)在修復(fù)周圍神經(jīng)損傷中影響其療效的因素及處理措施方法：從1987年至1997年，用顯微外科技術(shù)修復(fù)周圍神經(jīng)損傷80例92條神經(jīng)国产，日产久久精品，方法包括神經(jīng)松解術(shù)日本a一级黄色视频、神經(jīng)外膜縫合術(shù)、外膜束組膜縫合術(shù)久久本道久久综合伊人、束膜縫合術(shù)和神經(jīng)移植術(shù)結(jié)果：經(jīng)術(shù)后18個(gè)～60個(gè)隨訪免费黄色视频在线观看不，優(yōu)良率80.4％結(jié)論：神經(jīng)斷端精確對合和及早修復(fù)可提高其療效；同神經(jīng)欧美在线超碰女人、同的損傷平面国产精品国产欧美综合一区、損傷程度同人与牛特级毛片COM，采用同的縫合方法

In the mercerizing process, yarn or cloth is treated under tension at room temperature with a sodium hydroxide solution that may vary in strength from 15 to 30 percent. The concentration of sodium hydroxide and the length of treatment vary depending on the particular properties to be achieved and whether it is yarn or cloth that is being processed.

在絲光過程中，紗線或織物在室溫條件下保持一定的張力由氫氧化鈉溶液處理亚洲国产精品色一区二区三区江苏，溶液的濃度為15%~30%永久免费看黄A级毛片，濃度的大小以及處理的時(shí)間取決于所期待的整理結(jié)果，另外紗線和織物對處理?xiàng)l件的要求也不相同日韩中文字幕在线大全视频。

At first, the two players in the western Czech city of Karlovy Vary thought it was funny when both of their hands became trapped inside the table.

據(jù)Lidove Noviny日報(bào)稱一開始來自捷克西部城市Karlovy Vary的兩名臺(tái)球玩家覺得他們的手都被卡在了臺(tái)球桌上是一件滑稽的事情考屄视频。