Alkalescence a flux, such as alkali metals and alkaline-earth metal, zinc oxide and most stain oxide or chromophores components are gender neutral, the principal is alumian oxide, sometimes hemaite and electrolyic, and so on are also included in this composition; acidic components of oxide for silica, phosphoric acid, zirconia, etc.

堿性成分為熔劑亚洲日本性爱欧美，如堿金屬免费毛片在线视频观看、堿土金屬免费观看黃色A片一级视频国产、氧化鋅及多數(shù)的著色氧化物或發(fā)色基團(tuán)国产一区二区熟女；中性成分為兩性氧化物国产专区精品主播在线，主體為氧化鋁国模人体美女专业网站，有時將氧化鐵和氧化錳等也列入此成分中；酸性成分中有代表性的氧化物為氧化硅欧美日韩国产亚欧在线观看、磷酸激情视频小说理论、氧化鋯等

We investigated alcohol, acid, amine, ester and several kinds of normal metal clusters by using the HF-LCAO-MO method for the lubricate mechanism of different polarity bases, through the frontier orbital energy levels and its composition.

用HF-LCAO-MO方法計算醇、酸国产一级特级黄色网站、胺肏屄视频免费观看、酯4類油性劑和常見金屬的原子簇模型，從前線軌道能級欧美一区二区日日屄、分子軌道組成等方面研究了不同極性基團(tuán)的潤滑機(jī)理www.shyeze.com。

Silicon tiny powder is tiny amorphism grain that is carried out by smoke when we smelt ferrosilicon and metal silicon. Its major composition is SiO2, and it has superior pozzuolana performance.

硅微粉是冶煉硅鐵和金屬硅時被煙氣帶出爐外的無晶形細(xì)顆粒，其主要成分是SiO298神马午夜，具有優(yōu)越的火山灰性能日韩成人丝袜在线视频。

Results After firing/repolishing, the surface composition of the four metal-ceramic alloys changed slightly, and more oxygen was on the surface; Elements Cr, Mo, Al decreased in NiCr metal-ceramic alloys; Co, V is decreased and W increased in CoCr alloy; Pd increased in high noble alloy.

已往學(xué)者對NiCr烤瓷合金研究指出[1￣5]：合金經(jīng)過烤瓷熔附燒結(jié)，合金的顏色老嫖客精品视频在线播放，顯微結(jié)構(gòu)乃至物理機(jī)械特性將會發(fā)生改變可以免费看黄的网址，變化趨勢因材料種類不同而不同。

Results After firing/repolishing, the surface composition of the four metal-ceramic alloys changed slightly, and more oxygen was on the surface; Elements Cr, Mo, Al decreased in NiCr metal-ceramic alloys; Co, V is decreased and W increased in CoCr alloy; Pd increased in high noble alloy.

結(jié)果 烤瓷／拋光后永久黄网播放站色视频免费，4種合金表面元素組成存在波動欧美激情免费性爱，表面氧組成增多，差別顯著seqiqi999；NiCr合金Cr色色色色香蕉、Mo、Al減少午夜AV；CoCr合金Co日韩乱子伦免费视频、V減少，W增加丝袜日韩无码激情视频；Au合金Pd增加国产图片大全综合视频。

Alloys: from two or more metal and metal or non-metallic composition of the material with metallic properties.

合金：由兩種或兩種以上金屬或金屬與非金屬組成，具有金屬特性的物質(zhì)美女做a。

In addition to the influences of brazing temperature and the composition of filler metal, the rate of solution of base metal into molten fil...

最后欧美精品观看视频免费，在釬焊溫度下對釬縫進(jìn)行了不同時間的保溫處理自慰网站，發(fā)現(xiàn)釬縫的強(qiáng)度和抗彎能力僅有不大程度的改善。

In this paper, the effect of composition of transition metal oxides obtained by the orthogonal design , atmosphere and the nucleation agent on the gloss of metal glazes in ferric oxides was discussed.

采用廉價的鐵系氧化物樱桃视频iosapp，研究了正交設(shè)計的過度金屬氧化物組成日韩精品深夜影院在线观看网站下载、氣氛、晶核劑等因素對釉面金屬光澤的影響毛片高清无码在线。

Two carbonyl triruthenium metal clusters were separated with cellulose tris (3, 5-dimethylphenyl-carbamate) as chiral stationary phase. The effects of the optimal conditions were determined according to the effects of the mobile phase composition, the flow rate of the mobile phase and the solvents of the samples etc on the chiral separation of the metal clusters.

應(yīng)用纖維素三（3国产二级三级精品， 5-二甲基苯基氨基甲酸酯）手性固定相對2種羰基釕金屬簇合物進(jìn)行了拆分，通過流動相組成欧美久草黄色网站三级片、流速和樣品溶劑等條件對拆分影響的考察對拆分條件進(jìn)行了優(yōu)化国产wwwjizz。

In order to disclosure the reason why the electrocatalysis activeness and selectivity droped after being used several hundred hours continuously, the x-ray diffraction, scanning electron microscopy and energy dispersive spectroscope have been used to characterize the surface condition variations of Monel metal. The results indicated: Monel metal belongs to the Cu-Ni alloy around the electrolysis experiment.And after being used for 600hr, the surface layer element composition and geometry distribution of the alloy changed, namely in the alloy the Cu element /which superficial free enthalpy was smaller,"concentrated" to the alloy surface,and formed one kind of marble structure microcrystallite.Thus the electrode surface becamed rough a

為了揭示蒙乃爾合金陰極在連續(xù)使用數(shù)百個小時后電催化活性劑選擇性下降的原因，采用X射線衍射儀美国午夜精品久久热、電子掃描電鏡和電子能譜分析儀對電解實(shí)驗(yàn)所用的蒙乃爾陰極材料在電解實(shí)驗(yàn)前后的表面狀態(tài)進(jìn)行了表征女人一级在线免费观看视频，結(jié)果表明：所使用的蒙乃爾合金陰極材料在電解實(shí)驗(yàn)前后均屬于Cu-Ni合金，使用600hr后黄片在线高清免费看，由于表面層元素組成和幾何排布發(fā)生了變化www色色com，即合金中表面自由焓較小的Cu元素向合金表面&富集&，形成一種大理石結(jié)構(gòu)的微晶视频日韩最新无码迅雷下载，表面粗糙人摸人操人人超碰、不均一，這是造成其對硝基苯電還原的催化活性及選擇性隨著使用時間延長而逐漸下降的主要原因日韩男女你懂的在线观看，同時也為此類電極的修飾改進(jìn)提供了方向4444色视频在线。