The surface topograph of the coatings specimen after erosion was observed under the scanning electron microscopy and the erosion mechanisms was discussed.

對沖蝕后的涂層試樣表面形貌進(jìn)行了掃描電子顯微鏡觀察分析欧洲欧美精品黄片，就石英砂顆粒和催化劑顆粒沖蝕下，葉片涂層失重破壞的機(jī)理進(jìn)行了分析探討。

Because change of volume reflected eroding process of watershed and surface change reflected change of topography surface, this model described relationship between watershed topograph and erosion.iv As a quantitative index of wateshed topography, topograph fractal demension can represent surface shape information of watershed topography in the round. Reseach find that watershed model and actual watershed show good fractal character. Topography fractal dimension related with process of development of watershed physiognomy and represented degree of watershed development, v Sediment yield intensity of watershed model reflected erosion characteristic of watershed model in different development phase.

流域模型產(chǎn)沙強(qiáng)度的變化反映了流域模型在不同發(fā)育階段的侵蝕特征，模擬試驗研究結(jié)果表明：在整個流域模型地貌地貌的發(fā)育過程中欧美第一射，其產(chǎn)沙強(qiáng)度呈現(xiàn)由小到大青青艹逼网站久艹免费，然后又逐漸減小的總體趨勢，流域模型單位降雨產(chǎn)沙率及平均輸沙率與地形分維數(shù)表現(xiàn)為Gaussian模型關(guān)系色综合色欲色综合色综合色综合，其關(guān)系形式與結(jié)論3中相對體積和表面積之間關(guān)系相似，進(jìn)一步說明了以地形分維數(shù)表達(dá)地形變化的合理性99r在线观看视频精品。

Large scale CFB boiler baker is a key process to make anti-erosion refractory s intering, shaping and attain its performance of heat resistance, pressure resist ance, erosion resistance, torsibility and shock-proof.

大型循環(huán)流化床鍋爐的烘爐是使耐火耐磨材料燒結(jié)成型并使之達(dá)到耐火女性毛片A、耐磨、耐壓亚洲A∨无码午夜剧场、抗折色男人在线视频、熱震穩(wěn)定性、高溫耐壓性能的關(guān)鍵www,x日本,COm。

The unstructural knowledgeof soil erosion in Guizhou Province was concluded,which is the basis of studying the primaryand the senior methods of interpreting soil erosion message in Guiozhou based onunstructural knowledge.

搜集国产精品玖玖玖玖玖玖玖、分析了貴州省有代表性的17個小流域土壤侵蝕和土壤侵蝕影響因子的相互關(guān)系，總結(jié)出了貴州山區(qū)土壤侵蝕的非結(jié)構(gòu)性知識激情五月毛片免费，為進(jìn)行基于非結(jié)構(gòu)性知識發(fā)現(xiàn)的土壤侵蝕信息提取初級和高級方式研究奠定了知識基礎(chǔ)一区二区网站。

This research applied austempering heat treatment to obtain various microstructures in the matrix of ductile iron and studied their erosion wear behavior. The effects of different impact angle and microstructure on erosion wear rate and morphology wase investigated. Mechanical property evaluation together with SEM analysis was also carried out to correlate the wear behavior observed.

本研究系以球墨鑄鐵進(jìn)行沃斯回火熱處理，獲得不同基地組織的試片操爽一级视频网站，再利用沖蝕磨耗實驗來進(jìn)行各種角度的沖蝕磨耗日韓在線專區，配合機(jī)械性質(zhì)測試及掃描式電子顯微鏡來觀察沖蝕表面，探討沃斯回火熱處理對球墨鑄鐵不同沖蝕磨耗型態(tài)與沖擊角度的影響超碰人人人人人人人操。

The filtration produced by our factory has such good performance as high temperature resistance, flame resistance, good chemical stability, excellent firmness strength, low chlorin evolution, metal melting erosion resistance, good quality of filtering sand and convenient use, which is widely used for foundry filtering netlike cloth , filtering treatment for metal melting and improving casting quality, in addition , for such industrial fields as filtering for chemical erosion liquid , tobacco leaf filtering net for environmental protection, and fire fighting.

本廠生產(chǎn)的鑄造過濾網(wǎng)具有耐高溫男女猛烈无遮挡高清免费、耐燒蝕、化學(xué)穩(wěn)定性好404黃色網站免費看；良好的剛強(qiáng)度99精品日中、發(fā)氣量低、耐金屬熔體沖刷caoprom在线、濾渣質(zhì)量好亚洲欧美乱码一区二区、使用方便等優(yōu)良的性能，被廣泛用于鑄造過濾網(wǎng)按摩一级毛片真人，對金屬熔體進(jìn)行過濾凈化處理好超碰在线，改善鑄件質(zhì)量，還可用于化工腐蝕液體的過濾和環(huán)境保護(hù)用煙葉過濾網(wǎng)以及消防等工業(yè)領(lǐng)域aigao在线。

The objectives were to analyze the effects of wind erosion under plough tillage and no-tillage, evaluate changes in soil physical, chemical and biological properties due to different tillage practices, and to discuss the effects of soil properties on wind erosion.

以北方農(nóng)牧交錯帶為研究對象av网址在线播放，分析了免耕對農(nóng)田土壤風(fēng)蝕的影響，評價了不同耕作方式下與土壤風(fēng)蝕相關(guān)的土壤物理黄片成人片免费、化學(xué)和生物學(xué)特性的差異日本高清视。

At the same surface soil velocity, the wind erosion modules under plough tillage are 3～8.2 times of those under no-tillage. And the wind erosion modules decrease with the increase of years of no-tillage.

在同樣風(fēng)速條件下，翻耕地土壤風(fēng)蝕侵蝕率是免耕地的3～8.2倍欧美人人做人人爱，且隨免耕年限的增加视频毛片，土壤風(fēng)蝕侵蝕率呈現(xiàn)遞減的趨勢亚洲天堂国产制服。

Soil erosion and soil degenerated by erosion is a main environmental problem in the world.

土壤侵蝕及其導(dǎo)致的土壤質(zhì)量退化是世界性的重大環(huán)境問題之一。

Based on applying the assistant measure such as the change of grain size, susceptibility and spore powder of the beach sediment, we studied the chance and mechanism of erosion-deposition of the beach surface and used mathematical calculation to analyze the trend of erosion-deposition of the beach surface between the two jetties and inside the offshor...

在此基礎(chǔ)上老乱女中文字幕熟女熟妇，結(jié)合粒度国亚洲视频、磁化率和孢粉變化等輔助手段研究灘面的沖淤變化及其機(jī)制，并通過數(shù)學(xué)計算研究分析突堤之間和離岸堤內(nèi)灘面的淤積趨勢免费激情网址。