The results show that a MgSnO3·H2O conversion film is formed by treatment in the stannate solution at 90℃, and the immersion test and potentiodynamic polarization show that the corrosion resistance of the AZ91D alloy is improved to some extent.

結(jié)果表明：錫酸鹽轉(zhuǎn)化處理后合金表面形成了以MgSnO3·H2O為主要成分的轉(zhuǎn)化膜欧美一区永久视频免费观看，可對(duì)合金起到一定的防護(hù)作用97成视频在线网；轉(zhuǎn)化膜由細(xì)小的球形顆粒密積而成，顆粒之間存在間隙欧美一级做片性视频，它可以為化學(xué)鍍鎳的前處理過(guò)程提供良好的吸附條件影音先锋日韩在线资源；轉(zhuǎn)化膜上的化學(xué)鍍鎳層組織致密、無(wú)缺陷欧美日韩在在线视频， MgSnO3·H2O轉(zhuǎn)化膜在鍍鎳層與基體之間起到過(guò)渡作用中文字幕日本黄色视频，鍍層的磷含量達(dá)到9%，與基體結(jié)合良好天天插天天碰；在3.5% NaCl (pH=7)溶液中的動(dòng)電位極化測(cè)試表明欧美激情a片免费专区，鍍鎳以后的合金在陽(yáng)極極化過(guò)程中發(fā)生了明顯的鈍化，耐腐蝕性能進(jìn)一步提高人人爱人人操人人摸人人干人人爱，對(duì)基體起到了較好的防護(hù)作用91超碰在线中出。

This bulbous-looking plant has the look and taste of scrambled eggs when cooked, and is often paired with stonefish and eaten as breakfast.

在烹飪時(shí)，這種像球形的植物看起來(lái)亚洲欧美国产一区二区，聞起來(lái)都像是炒的雞蛋月综合网；通常它是和石頭魚成雙出現(xiàn)在早餐餐桌上的。

A radiant calibration algorithm is presented to satisfy visual and psychology estimation. Details submersed in margin region could be recovered.

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Silicon powders were mixed with pore-forming agent of 30wt% and agglomerant of 1wt% and shaped into discs of Φ70 mm×5 mm by mould pressing under pressure of 40 Mpa.

通過(guò)添加30wt%的成孔劑顆粒图片区偷拍区综合区小说区，制備出孔隙率在55%左右的具有宏觀球形孔的多孔氮化硅陶瓷。反應(yīng)燒結(jié)前日韩午夜在线高清成人影片观看免费，在低于硅熔點(diǎn)的溫度下国产三级精品三级在线区，對(duì)多孔硅坯體進(jìn)行不同溫度和不同時(shí)間的預(yù)燒。

Could be observed on 10th day after pollination, archesporial cell on 20thday, megasporocyte on 24th day, the functional megaspore on 30th day; and 8-nucleate embryo sac on 41th day. And then double fertilization finish and early globular embryo emerg.

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Follicles solitary or paired and widely divergent, ovoid to strongly beaked, often broad at base.

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The results indicated, somatic embryos of Lycium barbarum L. mostly came from single embryogenic cell. Finaly, embryogenic cell grew into plant after bicellular, tricellular and multicellular stage.

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From the temperature (612℃) slightly under its liquidus, the nucleation number was most in the melt, the primary grains were fine and global, the number of grains per area was more, and the optimum holding time was near 30min at 612℃. From the temperature (600℃) below its liquidus, the nucleation number was more, but some nucleuses congregated and grew dendritically.

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Dioecious monoecious, reproductive structures axillary, solitary. Pollen cones pedicellate, globose, with overlapping bracts at base; microsporophylls 6-14, shield-shaped, each with 4-9 radially arranged pollen sacs. Seed-bearing structures subsessile, with several overlapping bracts basically. Ovule erected, entrusted with disc-like embryophore. After fertilization, embryophore developed into fleshy, cup-like and red aril.

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The characteristic in liquid culture of the purified strains were described, and the relation between the characteristic and the taxonomic traits was researched for the first time. The two groups of Myxobacteria differentiated according to the shape character of the myxospores and vegetative cells had different characteristic in liquid culture.

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