The question is whether this erosion is just part of an aberrational cycle - to be fully made up in the next upturn - or whether the business has slipped in a way that permanently reduces intrinsic business values.

意 味著下次景氣翻揚會再回復，或是有可能一去不復返A级视频欧美黄，企業(yè)的價值就此永遠地流失掉www.天堂网av。

Geology The first stage in the erosion cycle.

侵蝕的初期：侵蝕圈的第一階段

The first stage in the erosion cycle.

河水侵蝕了兩岸的巖石久久精品国产字幕AV。

Organic carbon burial forcing of the carbon cycle from Himalayan erosion〔J〕.

青藏高原東北部30 ka以來的古植被與古氣候演變序列〔J〕日本黄在免一区在线。

The condition becomes a vicious cycle - erosion of the skin from licking leads to pain and itching, which leads to more licking.

該疾病會形成一種惡性循環(huán)-舌舔?qū)е旅訝€人人人人操在线国产，繼而引起疼痛和瘙癢，疼痛和瘙癢繼而引發(fā)進一步的舌舔亚洲三级电影网站。

In recent years, Jilin Province takes as the national important industry and agriculture production base, its economy has obtained the huge development because of increasing the development dynamics, and it has consumed the massive land resource, but along with this, a series questions such as cultivated area reduction, land environmental pollution and soil erosion appeared. The positive cycle of ecosystem has already been destructed.

吉林省作為國家重要工農(nóng)業(yè)生產(chǎn)基地在线国产视频一区二区三区，近年來，由于加大開發(fā)力度免费无码又爽又刺激高潮男男，經(jīng)濟取得了巨大的發(fā)展欧美粗暴性交，消耗了大量的土地資源，但也隨之出現(xiàn)了一系列諸如耕地面積減少www18禁、土地環(huán)境污染成年女人vr免费视频播放、水土流失等方面的問題，生態(tài)系統(tǒng)的良性循環(huán)已經(jīng)受到破壞亚洲h成视频。

The team members ask the families a number of questions that pertain to the project. These include, among others, questions about the frequency and scale of flooding events by the river, the movement of the river channel, erosion, their migratory cycle during the year, whether they cultivate and/or collect wild plants, their views about the archaeological sites, etc.

隊員們向采訪家庭提出各種各樣與研究計劃有關的問題小草A片，其中包括河中發(fā)洪水的頻率和規(guī)模，河床擺動岛国毛片久久69、侵蝕XⅩXWWW，一年之中的遷徙循環(huán)周期，是否栽培或者采集野生植物最新黄色网站一级，以及他們對考古遺存的看法等等亚洲自拍第一区。

Fluvial cycle of erosion; normal cycle

恢復～。水的～是液體日韩欧美亚中州在线观看。

The reasons of water cycle being destroied are as follows: Because of the forest-steppe vegetation destroied and water and soil erosion, water resource conservation layer is destructed, and surface water and groundwater of mountainous areas is also damaged. Groundwater is damaged as a result of poor drainage of mining industry. The river channelization destroies surface water and wetland groundwater. The plain groundwater is damaged because of excessive exploitation. The decreasing of actual evaporization destructs precipitaion cycle.

發(fā)現(xiàn)了自然水循環(huán)各環(huán)節(jié)被破壞的原因：森林草原植被破壞和水土流失日本三级在线专区高清，破壞了水源涵養(yǎng)層，破壞了山區(qū)地表水和地下水国产美女AAA在线；礦業(yè)不良排水破壞了山區(qū)地下水九九视频精品38在线播放；河流渠道化破壞了地表水和濕地地下水；過量開采破壞了平原地下水Aa黄色网址；陸地實際蒸發(fā)量的減少激情图片欧美乱伦，破壞了大氣降水循環(huán)。

Using maximum flooding surface and local explosure erosion surface as the correlation framework surface in the 4-th hierarchical base-level cycles, sand-body in the 3-th hierarchical base-level cycles formed in the 4-th hierarchical base-level cycles may be correlated layer by layer. The law of the sand-body and the characters of reservoir heterogeneity formed in the 4-th hierarchical base-level cycles are discussed. The study shows:①During early period of the 4-th hierarchical base-level cycle rising, subaqueous distributary channel formed, continuously stacked vertically, and migrated in limit range laterally, and channel sand-body stretches farther longitudinally, and lacks interbeds of mud rock and siltsand in sand rock, reservoir heterogeneity is relatively weak.②During mid-period of the 4-th hierarchical base-level cycle rising, subsaqueous distributary channel migrated actively, channel divided and converged strongly to form netted sand-body and sand sheet mainly, but interbeds of mud rock and siltsand increases gradually in sand-body, reservoir heterogeneity increased.③During later period of the 4-th hierarchical base-level rising and early period of the 4-th hierarchical base-level falling, reservoir sand-body was poor, and only form thin sand-body of subsaqueous distributary channel, subsaqeuous creveas and distal mouth bar, sand-bodys are surrounded by mud and silt rock.

進一步采用以第4層次基準面旋回中相當最大湖泛面的相轉(zhuǎn)換面和具有區(qū)域性暴露侵蝕作用的層序邊界面為等時地層對比框架的邊界图片区小说区另类激情校园，對發(fā)育于MSC2—MSC4三個第4層次基準面旋回的第3層次基準面旋回內(nèi)砂體進行了逐層等時對比日本黄色小视频在线观看，探討第4層次等時地層對比格架內(nèi)儲集砂體發(fā)育分布規(guī)律，及儲集砂體的非均質(zhì)性特點亚洲日韩午夜，研究發(fā)現(xiàn)：①第4層次基準面上升初期發(fā)育的水下分流河道在线观看黄视频国产亚洲，砂體呈連續(xù)疊置、側向遷移受限精品国产福利在线色图，縱向上呈長距離延伸的帶狀產(chǎn)出激情美女成人网站大全免费视频，砂體間泥、粉砂巖夾層少久久免费看少妇高潮A片农村，儲層非均質(zhì)性相對較弱天堂AV天堂；②在第4層次基準面上升中期發(fā)育的水下分流河道側向遷移活躍，縱向延伸過程中分流匯合作用強烈国产手机视频在线观看你懂的，以形成網(wǎng)狀或席狀連片砂體為主视频在线观看好爽好紧好舒服，但砂體間泥深夜特黄A级毛片免费看网站、粉砂巖夾層逐漸增多，儲層非均質(zhì)性增強色黄片子女人男人丝袜黑打炮视频；③第4層次基準面上升晚期和下降早期亚洲综合色图一区，不利于儲集砂體發(fā)育，僅出現(xiàn)少量薄的水下分流河道在线亚洲黄色中文字幕视频、水下決口扇综合精品视频一区二区、遠—河口砂壩砂體。