When pH value.5, faster deposition rate, faster growth rate of crystallizing nucleus, which causes bigger crystalline granularity and bad surface quality of the deposits such as crassitude or darkling.

鍍液pH值和Sn~(2+)離子濃度也是影響晶粒粒度大小的關(guān)鍵因素午夜欧美黄色。pH＜0.5時(shí)免费人成视频在线观看视频网站，沉積速度過快黄色网站视频一区，晶核成長(zhǎng)速度快91视频免费播放，晶粒粒度較大，鍍層表面粗糙在线一级不卡a毛片、發(fā)黑欧美性爱交视频，表面質(zhì)量差。

Clearance is the shortest distance between conductive circuits; creepage is the distance between conductive surfaces along the surface.

間隙是導(dǎo)電電路之間的最短距離jinv在线观看精品，爬電距離是沿物體表面之間的導(dǎo)電表面的距離美女露出奶头无遮挡免费视频。

Comparing the electrolyte concentration shifting along the time with the membrane surface potential shifting along the electrolyte concentration, the crimple phenomenon is related to the shift rate of electrolyte concentration and to the shift range of the membrane surface potential.

通過模型計(jì)算環(huán)境中平均鹽濃度隨時(shí)間的變化及實(shí)驗(yàn)測(cè)量膜表面電位隨鹽濃度的改變，我們發(fā)現(xiàn)皺褶的出現(xiàn)及形變程度與鹽濃度變化的急劇程度有關(guān)国产二级黄片视频，也與膜表面電勢(shì)變化幅度有關(guān)黄视频免费。

First, from room temperature to 500oC, the shell structure is amorphous with crinkly and airtight character. The shell structure begins to change into γ-Al2O3 and α-Al2O3 at 900oC. The surface of shells shows nano-sized pores at 900oC from SEM and BET analyses. When heated to 1000oC and 1100oC, the shell forms stable α-Al2O3 structure with smooth surface. Cracks often occur at the triple grain junctions. The specific surface area and the total pore volume of the hollow spheres increase with the calcination temperature.

首先，將鍛燒溫度由室溫提升至500℃時(shí)www.jcwmining.com，球殼屬非晶相皺褶狀致密結(jié)構(gòu)；在900℃時(shí)開始有γ-Al2O3相及些許的α-Al2O3相出現(xiàn)91国在线精品视频，由SEM及BET結(jié)果得知无码无毒小视频在线播放，900℃之球殼表面有許多奈米級(jí)孔洞出現(xiàn)；當(dāng)加熱至1000℃和1100℃時(shí)精品视频在线观看日韩AV，球殼形成穩(wěn)定相之Al2O3結(jié)構(gòu)亚洲哟哟在线网站在线观看，殼層表面趨於平滑，且球殼在晶界處有微裂縫存在欧美国产日韩在线综合；由BET 結(jié)果得知禁止18岁以下观看的网站，比表面積及總孔洞體積會(huì)隨鍛燒溫度之增加，有增加之趨勢(shì)A片一A片一A片一a片。

In this paper with cross correlation of random process, the surface of grinding machining and abrasive jet finishing machining are researched.

本文應(yīng)用隨機(jī)過程的互相關(guān)性對(duì)磨削加工表面和光整加工表面進(jìn)行了研究91青春娱乐国产盛宴精品。

Atomic force microscopy is used to examine the surface morphology of the 3-monolayer InAs. It's found that the evolution of surface morphology with increasing the GaAsSb thickness can be classified into 3 stages: random distribution of InAs quantum dots, space-selective growth of InAs quantum dots on cross-hatching surface, and purely cross-hatching surface.

最后，由原子力顯微鏡分析插入阴道一出一入视频，讓我們觀察到樣品表面的InAs奈米結(jié)構(gòu)的分布型態(tài)：(1)隨機(jī)分布亚洲人成中文无码毛片茄子，(2)在田埂狀(cross-hatching)的表面上選擇性的成長(zhǎng)，(3)奈米結(jié)構(gòu)漸漸地消失色欲色欲天天天WWW亚洲伊，最后僅剩田埂狀的表面型態(tài)国产三级精品。

The Flex-Hone tool creates a plateau finish, free of cut, torn and folded metal while producing the ideal crosshatch finish for oil retention which is exactly what engineers require.

經(jīng)過球頭刷處理的表面完全沒有任何的劃痕、撕痕一道本在线综合、或折疊金屬www.青草青；同時(shí)欧美日韩又色又爽又黄，能夠形成的網(wǎng)紋狀表面，這些網(wǎng)紋可保留潤(rùn)滑油国产精品第5页狼友视频。

The results show that the simplified equations can be used to calculate the weld magnification factor not only for the T-butt joint but also for the butt, cruciform joints.

結(jié)果表明作者給出的簡(jiǎn)化表達(dá)式不僅可以用來計(jì)算T型接頭的焊趾表面裂紋應(yīng)力強(qiáng)度因子韩国理论电影午夜三级717，而且可以用來計(jì)算對(duì)接與十字接頭焊趾表面裂紋的應(yīng)力強(qiáng)度因子。

Mechanical valve is used most among all the artificial heart valve, but its surface will get cruor if it stay long in body fluid. So its meaningful to increase the bioactivity of it.

機(jī)械瓣膜是目前臨床上應(yīng)用最多的一種人工心臟瓣膜18岁以下禁看的黄色网站，但是機(jī)械瓣膜表面在長(zhǎng)期和血液的接觸過程中會(huì)導(dǎo)致凝血欧美粉嫩泬无套在线观看，因此提高機(jī)械瓣膜表面的血液相容性對(duì)機(jī)械瓣膜的臨床應(yīng)用具有重用意義。

The relationship between aqueous two phase system and liquid crystal of cationic and anionic surfactants mixture was studied.

研究了正離子表面活性劑 CTAB與負(fù)離子表面活性劑 SDS混合系統(tǒng)的雙水相與液晶結(jié)構(gòu)的關(guān)系亚洲区欧洲区视频。