On the silicon substrate an epitomical layer is made,where IC components are formed subsequently.In an CVDprocess,the silicon substrates places in a vacuum crystal tube are first heated to 1,600°C by high-frequency radio power and then H⒉Cl⒉Si and certain gaseous compounds of As or P is injected into the tube to make a deposit of several um on their surface.Ions of As or P are impurity deliberately added to the singl-crystalline silicon structure to supply electrons that transmit "negative"current in the silicon crystals,which is called n-type silicon.Bcan be added as impurity to produce p-type silicon that supplies holes for transmitting "positive"current.Whether a p--type of an n-type silicon substrate is needed depends on what type of transistors is expected to be manufactured on it:n-p-n type of p-n-p type

對硅襯底上的一個epitomical層了日本欧美自拍主播偷拍，而IC零件形成subsequently.in一個CVD法（化學(xué)氣相depsition ）過程中欧美亚洲一级视频免费在线，硅襯底的地方在真空晶體管均先加熱至1600 ° C時日本免费黄色网址在线看1，由高頻率的無線電功率精品国性色无码AV网站，并然后h ⒉氯⒉硅和某些氣態(tài)的化合物，砷或P 亚洲色图欧洲色图激情文学，是注入試管日本免费网，使存款的幾位嗯對他們surface.ions的作為或P是雜質(zhì)刻意添加到單結(jié)晶硅的結(jié)構(gòu)，以供應(yīng)電子傳遞的&負面&目前又黄又粗又长又硬又爽的视频，在硅晶體欧洲免费精品视频在线，即所謂N型silicon.b ，可以增加一條77色77亚洲欧美在线观看，作為雜質(zhì)產(chǎn)生的p型硅供應(yīng)孔轉(zhuǎn)遞&積極& current.whether一個P -類型的一個n型硅襯底色站www精品视频在线，是需要靠哪些類型的晶體管預(yù)計將在制造上它： NPN型的PNP型

By alcohol method, based on single factor test, using response surface methodologyto study effect of extraction time, ethanol concentration and solid-liquid ratio on pentacyclic triterpenes extraction from Bamboo.

本研究采用乙醇提取法，在單因素試驗的基礎(chǔ)上日韩精品一区地址一地址二，應(yīng)用響應(yīng)曲面設(shè)計(Respones surface methodology99精品黄色免费看， RSM)研究了提取溫度、乙醇濃度和料液比對竹葉五環(huán)三萜提取得率的優(yōu)化工藝爱爱小说网。

The compounds that isolated from Clausena excavata and Rubia cordifolia can reduce the secretion of hepatitis B surface antigen.

此外亦從過山香﹝Clausena excavata﹞與茜草﹝Rubia cordifolia﹞中篩選出一些化合物與其結(jié)構(gòu)相似物能夠抑制B型肝炎病毒表面抗原﹝hepatitis B surface antigen久久99精品久久久久久国产荷花， HBsAg﹞的分泌。

The nano-silica partrcles are organic-modified by E-MA-GMA elastomer through direct solvent process,the organic-modify process mechanism was studied,and the dispersing of modified nano-silica particles in tetrachloroethane solvent and PBT were investigated.FIRT,TEM,SEM results indicated that the epoxy group of E-MA-GMA could react with the hydroxyl groups of silica surface,helped to reduce the interactions of nano-silica particles particles and improve the dispersion of nano-silica on PBT and the interfacia...

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It was shown that the area-averaged temperature profile also can not be obtained by means of a system with multi-laser sources in the unhomogeneous atmospheric surface layer.

標 簽 折射溫度梯度大氣近地面層非均勻 refraction temperature gradient atmospheric surface layer unhomogeneous

Fluorescence occurs when ultraviolet radiation from just outside the visible spectrum is absorbed and re-emitted as visible light,thus increasing the total amount of light refected from a surface.Fluorescent brightening agents are commonly added to paper and boards to make them brighten and whiter and to increase the possible density range that can be achieved when printing on them.

熒光發(fā)生時，紫外線輻射從外面可見光譜吸收和再音量為可見光玩弄人妻少妇一级毛片，從而增加總額輕refected從surface.fluorescent增白劑補充常用紙張和議會黄色网站精品久久久久久，使他們 brightenandwhiter，并把可能的密度范圍時亚洲激情小说视频，才能得到印刷出來黄视频在线无限免费看。

The Bamboo Creek wetland system has a channel configuration, which consists of a subsurface flow unit (4 m × 50 m), a free water surface flow unit (4 m × 150 m), and an SSF unit (4 m × 50 m) connecting in series. Macrophytes with functions of pollutants purification and landscape values, such as cattail, cyperus, vetiver grass, reed, and canna, were planted in wetlands.

竹溪濕地系統(tǒng)由三個單元串聯(lián)所組成，第一單元為表面下流動濕地(SSF一本久道综合在线无码视频，subsurface flow system在线观看A网址，長50m，寬4m精品视频在线影院，200 m2)乱人伦熟妇中文字幕，第二單元為表面流動式系統(tǒng)(FWS，free water surface system，長150m亚洲一片二片三片，寬4m亚洲欧美日韩人人涩涩日日，600 m2)，第三單元為SSF濕地(長50m欧洲性爱免费三级片，寬4m91免费偷拍视频网站，200 m2)。

Localized surface plasmon resonance of metal nanostructures was also observed by dark-field optical microscope.

另外与子乱互换乱婬视频，金屬奈米結(jié)構(gòu)之局部表面電漿共振特性(localized surface plasmon resonance)也可在光學(xué)顯微鏡之暗視野下觀察其所呈現(xiàn)的顏色国产AⅤ熟女乱视频。

Methods Ten mature Wistar rats were divided into normal control group (5 rats) and adenovirus (E1, E3-Deleted and carried math1 and enhanced green fluorescent protein report gene, Ad-Math1-EGFP) scala vestibuli transfer group (5 rats). Right ears of the Ad-Math1-EGFP transfering group rats were deliveried 5μl Ad-Math1-EGFP (physical tite 2.1×10^11v.p./ml) into cochleas through the way of drilling scala vestibuli of cochlear basal turn. As a control, the normal group received nothing to inner ear. In order to estimate functional condition of vestibule and cochlea, the click-evoked potentials on the surface of the cervical dura mater, auditory brain stem response and swimming time were recorded in all rats at 7 days after treatment, and then histologic and morphologic observation were carried out after animals were sacrificed. Results All animals' morphologic observation showed that inner ear hair cells were normal after transfer.

將10只成年Wistar大鼠分為正常對照組和缺失E1、E3基因片段且構(gòu)建有Math1基因和綠色熒光蛋白報告基因的復(fù)制缺陷型腺病毒(adenovirus-Math1-enhanced green fluorescence protein亚洲三级乱伦一区二区， Ad-Math1-EGFP)前庭階導(dǎo)入組亚洲色图国产专区，每組5只，實驗組大鼠在右耳通過耳蝸底回前庭階打孔的方法導(dǎo)入物理滴度為2.1×10^11v.p/ml的上述腺病毒5μl福利在线国产，對照組大鼠不做任何處理国产精品一区二区精品视频。7天后對動物進行頸髓硬膜外短聲誘發(fā)電位(click-evoked potentials on the surface of the cervical dura mater， CDM-CEP)欧美老妇与小伙子作爱视频、聽性腦干反應(yīng)閾值檢測和游泳試驗国产草莓视频A区在线观看，評價前庭和耳蝸功能，然后將動物處死進行組織形態(tài)學(xué)觀察91在线精彩。

Objective To evaluate the influence of the frequency,the weight and the motion angle on the stress and the fatigue of the forearm extensors in repetitive wrist extending at low force loading level with surface electromyography.

目的用表面肌電描記術(shù)(surface electromyography欧美一级男女插穴视频，SEMG)評價低力量負荷下，頻率欧美也操也射视频、重量和運動角度3個負荷因素對重復(fù)性伸腕運動中前臂肌肉應(yīng)激狀態(tài)和疲勞的影響。