It concluded that the erosions on surface materials due to atomic oxygen were caused mainly by the oxidation process.

據(jù)此，以入射粒子與表面相互作用的經(jīng)典散射理論為框架性欧美激情视频免费观看，結(jié)合分子反應(yīng)動力學理論啊啊啊啊国产一区在线观看，建立了原子氧與飛行器表面材料間相互作用的普適性較強的局域模型。

If so, then can resist various influences and erosions, purify the circumstance of journalism, and can better exert ability and wisdom, and do well work.

這樣国产在一区二区线免费视频，才能抵制住各種不良風氣的影響和侵蝕欧美性爱高超网站，凈化新聞工作環(huán)境，更好地發(fā)揮才智国产又黄又粗又长网站，做好本職工作www无码观看十八岁。

In this study, we used the hill and gully area of the Loess Plateau, Inner Mongolia, where soil and water erosions continue to be responsible for much of the environmental problems in eastern China because of its fragility and long disturbance history. In this study, we developed an assessment method of indi...

最后欧美A日韩A，從自然生態(tài)學角度日日插人人插，結(jié)合研究區(qū)的實際情況，對該區(qū)域的生態(tài)系統(tǒng)健康恢復途徑久久伊人中文字幕色综合、生態(tài)系統(tǒng)管理和可持續(xù)發(fā)展策略提出了一些具有針對性的建議和措施自拍偷拍欧美性爱视频，并對生態(tài)系統(tǒng)健康評價的進一步研究進行了展望久久狠狠高潮亚洲精品。

As the disease progresses, the mucosal erosions coalesce to linear ulcers that undermine remaining mucosa.

隨著病變的進展av一本大道香蕉大在线app，被侵蝕的黏膜可融合形成線性潰瘍，將殘存的黏膜破壞欧美性三级网站。

Cases with linear or reticular enhancement, 4 cases with multiple bony erosions, while one patient with invasion of extra-articular structures. Conclusion: The feathers of nodular synovial proliferation, articular cartilage erosion, involement of subchondral bone, intra-and extra-articular invasion can all be detected presicely by MRI. MRI is the most valuable method for diagnosing PVNS.

MRI能準確反映PVNS中滑膜的絨毛結(jié)節(jié)狀增生亚州毛片a片视频、增生滑膜及其對關(guān)節(jié)軟骨的破壞以及增生滑膜對軟骨下骨質(zhì)及軟骨下遠部骨質(zhì)侵蝕的不同時期絨毛結(jié)節(jié)的影像學特征，并可以準確評價病變對關(guān)節(jié)內(nèi)外累及的范圍老妇女淫秽网站，是診斷PVNS最佳檢查方法。

The main research activities of the Department cover the general layout of hydro projects, hydraulics of spillways for high dams, energy dissipation and river bed or bank erosions, flow induced vibration, cavitation and air entrainment, river ice, hydraulic transient flow simulation and control on hydropower project, pumped storage project and long distance water transfer project, optimization of thermal/nuclear power plant and other industrial cooling systems, investigation of the fundamental theory of stratified/mixing flow and its applications, studies on fluid mechanics and thermodynamics of large scale cooling towers, hydraulic field observations for existing projects, development of instrumentation for physical model tests and field observations.

研究領(lǐng)域主要為水利水電樞紐總體布置www.国产真实大、高壩泄洪建筑物水力學大黄色片一区、消能防沖、流激振動365电影18禁天天影院、空化與空蝕国产剧情亚洲一区二区日韩、崩岸水力學與岸坡保護、河冰問題18免网站免费、水電站引水系統(tǒng)中的水力瞬變及調(diào)壓井水力學研究无码在线观看CAO、跨流域調(diào)水工程中的規(guī)劃及水力控制數(shù)值仿真、冷卻水的工程水力熱力問題研究色婷婷九月综合桃花网、環(huán)境水力學亚洲全黄一级网站、火電廠水工模型試驗與數(shù)值模擬研究、火電廠取排水局部泥沙沖淤試驗中文字幕精品一区、模型和原體監(jiān)測儀器的研制和開發(fā)亚洲你懂的在线视频、以及過水現(xiàn)場原體監(jiān)測。

Ordinary no destruction , the ossicular chain can be erosions and destruction , but more slight and no transitional .the major CT findings in simple chronic middle ear on 2 patients were soft tissue in middle ear cavity ,and 1 patient findings hydropneumo, the bone of tympanic cavity cirrhosis ,no destruction .

其它征象包括乙狀竇狠狠色天天综合网、鼓室蓋特级特黄色视频、水平半規(guī)管、面神經(jīng)管水平段骨質(zhì)破壞激情偷乱人伦小说动漫。29例肉芽腫型中耳炎CT表現(xiàn)為中耳腔內(nèi)的軟組織密度影丁香五月婷，部分有液平，鼓室壁增生国产freeXXXX性播放乳、硬化二区视频在线，骨質(zhì)破壞少見，聽小骨可出現(xiàn)吸收破壞黄色视频欧美，但程度較輕一级片黄色强奸，一般無移位。2例單純型中耳炎表現(xiàn)為中耳腔內(nèi)的軟組織密度影全黄毛片，1例有液平中文字幕欧洲有码无码，鼓室壁骨質(zhì)硬化，無骨質(zhì)破壞黄网站色视频播放免费下载。

On the basis of previous research and the authors' field investigations,it is thought that the complex geological structures,strong crust movements and rivers erosions,frequent earthquakes,abundant loose deposits,favorable geomorphology,well-developed modern glaciers and plentiful precipitation are the principal causes of triggering frequent mudflows in the study area.

根據(jù)前人的成果以及作者的實地調(diào)查狼友视频在线免费g观看，認為復雜的地質(zhì)構(gòu)造、強烈的地殼運動和河流切割、頻繁的地震亚洲激情图片、豐富的松散堆積物99riav3、有利的地形地貌、現(xiàn)代冰川以及豐沛的降雨是研究區(qū)泥石流災(zāi)害頻繁發(fā)生的主要原因欧美一级高潮片在线观看。

Paraneoplastic pemphigus is an autoimmune mucocutaneous disease firstly reported by Anhalt et al in 1990 . The disease is characterized by distinctive clinical symptoms and signs such as severe, painful mucosal erosions, polymorphous skin lesions, histopathology hallmarks and immunological findings.

摘 要：副腫瘤性天皰瘡是由Anhalt等人于1990年命名的一種自身免疫性皮膚黏膜疾病欧美国产精品日韩在线，以伴發(fā)腫瘤及血清中存在能識別表皮蛋白成分獨特的IgG自身抗體為特點。