Modified polylactic acid vector have better biocompatibility with Schwann cell, and their cytotropism were improved.

改性后的材料細胞生物相容性良好性感xxxxx，其表面親水性增加，但2材料可能在改性過程中表面酸度增加久综合久久，在處理上有必要改進久久中文字幕乱码久久午。

According to the variations in friction coefficient, wear rate, temperature of tribo-pair and tribo-surface micro hardness with time, the tribological process lubricated by oil containing Mg_6Si_4O_(10)_8 shows quasi-periodicity with characteristic of damped oscillation, and quasi-period is 200 h; micro-hardness of the worn surface is one time higher than that of 45~# steel substrate.

在實驗室條件下，驗證了主要組分為Mg6Si4O108的金屬磨損自修復劑在45#鋼摩擦副表面形成修復保護層的能力男人和女人日逼你红色视频，得到了厚3～6 μm的反應層性欧美一级A片野外；采用Falex型摩擦磨損試驗機進行了長達400 h的摩擦磨損試驗，研究了在Mg6Si4O108潤滑下45#鋼摩擦副的摩擦磨損性能999精彩视频、摩擦副摩擦表面顯微硬度和溫度隨時間變化的情況av72成年人网站久久。

The gauge block surface under test is imaged by the interference microscope. The interference image is acquired and transmitted to the computer by the digital CCD video camera. Digital image processing technology is used to extract the edge contour line and midline of the interference dark fringe.

待測量塊表面經(jīng)干涉顯微鏡所成的干涉圖像由數(shù)字CCD 攝像頭采集并傳輸?shù)接嬎銠C中，利用數(shù)字圖像處理技術色色色色精品视频，對干涉條紋的邊緣和中線進行提取久东京热，計算出量塊表面粗糙度評定參數(shù)。

The results show that it is impossible to carry out fire suppression by flame cooling and surface cooling for smaller droplet. The extinguishing mechanism for them depends primarily upon decalescence via gasification.

結果表明：對于滴徑較小的霧滴不可能達到火焰區(qū)或可燃物表面實施火焰冷卻和表面冷卻久久久国产AV一区二区，其滅火作用主要依賴于汽化吸熱。

Thus,in experiments of water mist flashover restraining, consideration only the mist decalescence in smoke and flame would be enough and doable.Nonlinear dynamics was chosen here for investigating water mist flashover restraining.

霧滴冷卻汽油池火燃料表面效果不佳免费一级A毛片在线播放一级，因而在構建細水霧抑制轟燃預測模型時可以忽略燃料表面冷卻特级美女一级黄色一丝不挂A片，僅考慮霧滴在煙氣層和火焰區(qū)的吸熱效果。

Metal heating, the workpiece exposed to the air, it often happens oxidation, decarbonization (ie, reduce the carbon content of the surface of steel parts), This is part of the surface properties after heat treatment has a negative impact.

金屬加熱時人人操人人搞人人摸人与马，工件暴露在空氣中嘿咻网址，常常發(fā)生氧化、脫碳(即鋼鐵零件表面碳含量降低)自拍日韩制服丝袜视频，這對于熱處理后零件的表面性能有很不利的影響国产一级a免费视频。

The mechanical causes of formation of joints can be judged by deflexion coefficient and/or the root of mean square of height of joint surfaces.

介紹了檢驗和分離巖石表面形貌中波紋度的方法，并研究了巖石表面形貌的波紋度特征99riav113。

As a new method to map the outer cortex of the human brain, a deformable surface model is described in this paper.

探討了大腦表面形態(tài)提取的一種新方法可變形表面模型日本比美女黄色网站。

The following key future research fields are needed to understand and predict Antarctic Ice Sheet mass balance: Observation and modeling of the surface elevation changes, determination of surface mass balance and its distribution over drainage basins as well as fluxes at the grounding lines and the bottom melting underneath ice shelves, understanding of the deglaciation history, development, comparison and improvement of all kinds of models related to modeling and prediction of ice sheet mass balance.

南極冰蓋物質平衡未來的重點研究領域是開展冰蓋表面高程變化的監(jiān)測與模擬国产黄色经典Av片，確定表面物質平衡及其在各冰流盆地的分布，著地線的冰流通量在线观看国产精品色，冰架底部的融化午夜免费福利视频，了解冰后期冰蓋退縮的動力過程，以及開發(fā)免费一级欧美大片视频在线、對比和改進與冰蓋物質平衡模擬和預測相關的各種模型破苞见红视频在线观看。關鍵詞：南極冰蓋；物質平衡欧美BBBXXXX；進展與展望

The principle and way of dectecing ultrasonic displacement of solid surfaces with laser heterodyne and phase-lockedloop to demodulate are described.

論述了應用激光外差和鎖相環(huán)解調原理探測固體表面超聲位移的原理夜恋午夜成人影院在线播放网站、方法，并利用激光外差干涉儀對固體表面的超聲位移進行了探測日韩A级网站，得到了很好的結果无码免费黄片。