With the development of civilization, peoples demand became more and more , land, as an important product stuff ,the intensity of landuse became higher and higher ,as the result: the quantity of farmland decreasing ; average area of tilth deducing ; urban expanding ; in land structure table ,built-up land ascending ,farmland and non-used land declining .

經(jīng)濟(jì)的發(fā)展国产免费吃奶摸下视频在线观看，人類社會(huì)的進(jìn)步，人的需求不斷的得到滿足久射久aV，土地作為一項(xiàng)重要的生產(chǎn)要素欧美午夜激情网，其利用結(jié)構(gòu)也隨之發(fā)生著變化：耕地總量的減少，人均耕地面積的下降想要插下面高潮视频，城市的擴(kuò)張美女裸体黄污18禁网站，土地利用結(jié)構(gòu)表中，建設(shè)用地比例的上升欧美湿鸡视频在线，農(nóng)用地和未利用地比例的下降等等色羞羞在线视频。

Amoena which has different ages, the results showed that:(1) because its short bearing and slow growth speed, stem-leaf ratio annual plant has few value in use, biennial and triennium have much more value in use than annual plant.

結(jié)果說明，（1）一年生山野豌豆由于其生育期短欧美三级在线日韩，在整個(gè)生長(zhǎng)季節(jié)內(nèi)生長(zhǎng)緩慢亚洲插下面视频，所以其基本沒有利用價(jià)值；二年生山野豌豆和三年生山野豌豆因其生育期長(zhǎng)A片免费看免费网址、生長(zhǎng)速度快av资源网站在线、生物產(chǎn)量高等特點(diǎn)，有較高的利用價(jià)值一区二区三区免费视频在线播放，其中欧美丰满熟妇乱视频XXXXX，三年生山野豌豆的利用價(jià)值高于二年生山野豌豆。

The probes of CHS, PHYA, COP1, CIP7 and HY5 genes were synthesized by total RNA extracted from the cortex tissue of tuberous root of turnip, the probes of PAL and CHI were synthesized by total RNA extracted from the petal tissue of Eustoma, and the probes of AS were synthesized by total RNA extracted from the fruit tissue of strawberry.

采用的探針中欧美魔鬼性暴力交XXXX，PHYA亚洲色资源站、COP1、CIP7欧美一级婬片A片免费手机版泡妞、HY5及CHS基因的探針是利用蕪菁的肉質(zhì)根周皮層的總RNA合成国产男女羞羞视频免费一区，PAL和CHI基因的探針是利用草原龍膽花瓣的總RNA合成，AS基因的探針是利用草莓果實(shí)的總RNA合成日韩髙清无码专区AV。

This paper pointed out the area on which unconfined water can be used for irrigation by water quality evaluation of comparat...

本文通過大面積的水質(zhì)評(píng)價(jià)日韩在线进入一区二区视频，給出了可供利用的潛水面積；闡述了不同水資源合埋利用的途徑最新自拍视频；估算了合埋利用潛水資源和引黃水資源的節(jié)水潛力免费滴黄色网站。

Suitable conditions of application , rainwater balance calculation and rainfall runoff intensity of undersoil are key issues in rainwater utilization engineering which are studied along with compiling Code of Design and Practice for Rainwater Utilization in Buildings and Sub-districts .

建筑與小區(qū)的雨水利用工程主要包括兩方面：雨水入滲和雨水收集回用，也可將前者稱為間接利用亚洲中文操女视频网站，將后者稱為直接利用樱花在线导航成人网站入口免费。

Garlic and garlic residues were studied based on the utilizable components and main components of both.

從大蒜及蒜渣的主要成分出發(fā)，對(duì)二者有用成分進(jìn)行比較国产JIZZ在线观看，論述了大蒜的開發(fā)利用及蒜渣綜合利用的意義熟妇精品视频，闡述了蒜渣具有廣泛開發(fā)利用前景

Contrast to the actual circumstances of Wuhan and Changchu, the conformity and the inconformity to the result of the model have been pointed out in chapter five. The reasons about this have been analyzed and some vali d measures and suggestions have been brought up.

第五章在武漢市和長(zhǎng)春市城鄉(xiāng)邊緣地帶土地利用現(xiàn)狀調(diào)查資料的基礎(chǔ)上將模型的結(jié)論與城鄉(xiāng)邊緣地帶土地利用現(xiàn)狀進(jìn)行了對(duì)比一级黄色录像视频免费看，指出了模型結(jié)論與實(shí)際土地利用狀況一致的地方和不一致的地方，針對(duì)不一致的地方分析原因久久天堂，并提出了解決問題的對(duì)策和建議色哟哟免费网址入口。

The special geometric restrictions like parallelism andperpendicularity implicated in vanishing elements are deeply studied. In single-view case,the theory is presented to interpret relationship between two planar lines by applying 3Dinvariants of vanishing points. In two-view case, the method on extraction vanishing pointof an arbitrary spatial line is described, and moreover, the theory is presented to interpretrelationship between two elements in 3D space, such as two lines, two planes, line andplane, and so on.

4詳細(xì)論述了消失元素(消失點(diǎn)、消失直線精品视频在线、消失平面等)所體現(xiàn)的垂直三级片在线观看无码、平行等特殊幾何約束關(guān)系；對(duì)單視圖九一国产在线视频免观看，提出了一種利用消失點(diǎn)列的3D不變量解釋平面直線關(guān)系的方法欧美十八禁性爱视频；對(duì)雙視圖，提出了利用自共軛三角形和對(duì)極幾何約束亚洲第一天堂avwww网站，提取任意直線的消失點(diǎn)的算法黄色视屏品爱网，并在此基礎(chǔ)了提出了一種利用消失元素的3D不變量解釋直線間、直線與平面間日韩专区综合第二页、平面間等多種空間幾何關(guān)系的方法亚洲国产欧洲中文字幕。

It needs to be paid attention to by the relative departments and experts.Northern South China Sea/ Marginal basin/Abiogenetic CO2/Migration and accumulation/Comprehensive development/Resource utilization.

因此，如何綜合開發(fā)利用這種資源潛力巨大的CO2欧美一级大片久久蜜视频，充分發(fā)揮其市場(chǎng)經(jīng)濟(jì)價(jià)值亚洲视频人人干，促進(jìn)和加快其資源化利用的進(jìn)程和步伐，這是該區(qū)目前天然氣勘探開發(fā)與綜合利用所面臨的重大科技攻關(guān)課題国产视频精品网。

On the base of study on arbuscular endomycorrhiza of Alnus of Changbai Mountain and nitrogen-fixing woods of Northeast of China, the paper attempted to reveal the DNA molecular polymorphism of the symbiotic arbuscular endomycorrhizal fungi for the effect that make better use of the fungi resource.

本項(xiàng)研究利用分子生物學(xué)技術(shù)和研究方法對(duì)中國(guó)吉林長(zhǎng)白山地區(qū)非豆科固氮植物以及東北地區(qū)固氮樹木的叢枝菌根真菌DNA分子多態(tài)性及其與宿主植物之間的相互關(guān)系等進(jìn)行初步研究成人网站日韩在线视频观看网址，旨在利用分子生態(tài)學(xué)理論和研究方法揭示叢枝菌根真菌多樣性及其與宿主植物之間相互適應(yīng)和協(xié)同進(jìn)化的一般規(guī)律，為更好地保護(hù)和利用這一重要的微生物資源提供理論依據(jù)日韩福利午夜免费无码AV。