显微学

By means of the Miedema formation energy model for binary system with the Tanaka modification by excess entropy and the Chou geometric model for ternary system, the interaction relation between rare earth element La and the constituent elements of Sn Pb alloy system was analyzed.

传统的Sn60 Pb4 0软钎料合金中添加微量稀土元素La( 0 0 2 4 %)，显著抑制了其显微组织中围绕先析出富Pb相的粗大的富Sn相晕圈的形成，实现了金属学组织的均匀化，并进而提高软钎料合金的高温拉伸强度 70 % [1] 。

The eggs, measuring 1.5-1.8 mm in diameter, were demersal strongly sticky, almost spherical in shape, transparent and unpigmented, with a pale yellow yolk and no oil globule and 2.3 - 2.5 mm after absorbing water.

另外采用组织学、组织化学对其原始器官分化，在显微水平上进行了研究，结果表明：成熟卵圆形，卵径1.5～1.8mm，淡黄色、透明、沉性、具强粘性。

For assisting identification of crude drug Herba Dendrobii. Methods Morphological and histological studies were carried out on 11 medicinal plant roots in Dendrobium Sw. by microstructural observation. The 11 species were divided into three groups according to their stem morphology: a pair fleshy-stem group, including D. chrysanthum, D. crepidatum, D. primulinum, D. hercoglossum, and D. crystallium; b thick-and rigid-stem group, including D. fimbriatum and D. aurantiacum var. denneanum; c node-or inter- node- bulgy-stem group, including D. findlayanum, D. gratiosissimum, D. pendulum, and D. wardianum. The surface descriptions of velamen were conducted for D. fimbriatum and D. aurantiacum var. denneanum which are similar in characters of cross section.

方法利用形态组织学方法，对茎多肉质的束花石斛Dendrobium chrysanthum及其易混的玫瑰石斛D.crepidatum、报春石斛D.primulinum、重唇石斛D.hercoglossum、晶帽石斛D.crystallium；茎粗硬的流苏石斛D.fimbriatum及其易混的叠鞘石斛D.aurantiacumvar.denneanum；茎节或节间肿胀的棒节石斛D.findlayanum、杯鞘石斛D.gratiosissimum、肿节石斛D.pendulum和大苞鞘石斛D.wardianum共11种药用石斛根进行显微结构研究；对根横切面结构相似的流苏石斛和叠鞘石斛，配合进行了根被表面制片观察。

Microscopical on the early embryonic developmgnt of Andrias davidianus .

大鲵胚胎发育的显微观察。信阳师范学院学

Creep cracks seem always to initiate at inherent casting pores and slowly propa-gate anisotropically along the (001) planes, perpendecular to axis of stress applied, upto the final fast fracture. Creep cracks can also nucleate at fractured carbides or at in-terfaces between carbides and matrix in the alloys containing more carbon.

结果表明：单晶的蠕变断裂具有明显的晶体学特征，蠕变裂纹总是从已有的铸造的显微疏松处萌生；对于含碳量较高的材料，碳化物及其与基体的界面也是裂纹萌生的有利位置；这些已萌生的裂纹在外加应力轴垂直的(001)面上各向异性地扩展，直到由于承载截面的逐渐减小而导致最终破坏。

Arsenopyrite, pyrite, chalcopyrite, marcasite, pyrrhotite, sphalerite, galena and boulangerite are the main metal minerals, while the gangue minerals are dominated by quartz, fluorite and calcite.

在野外调研基础上，对主要脉石矿物石英、萤石中流体包裹体进行了包裹体岩相学、显微测温分析和包裹体中气液相成分的LRM分析。

The fluid inclusion petrography and homogenization temperature of quartz vein type Au ore and the altered cataclastic rock type Au ore (area 210) show different characteristics of the fluid inclusions and variation of the ore-forming temperatures. The fluid inclusions can be divided into Ⅰ and Ⅱ types, i.

通过对北山地区金窝子矿区石英脉型金矿和210矿区蚀变岩型金矿中流体包裹体的岩相学和显微测温研究，查明了不同金矿类型中流体包裹体的特征和成矿温度的变化特征。

It showed that deformation twins had formed in 2Cr17Mn15Ni2N and 304L targets, despite the peak pressures induced by LSP were no more than one third and half of the critical stress for twinning of corresponding targets. Different types of microbands and dislocations configurations were observed in the two targets. The features of dislocations slip deformation induced by ultrahigh strain rate followed FCC metallic crystallology. No deformation martensite phase was discovered.

结果表明，激光诱导的峰压不到2Cr17Mn15Ni2N和304L不锈钢靶材孪生应力的1/3和1/2时即有形变孪晶形成；两种奥氏体不锈钢中出现不同的显微带和位错形貌特征；高应变率加载下奥氏体不锈钢位错滑移形变符合面心立方金属晶体学关系；没有发现形变诱发马氏体相。

Results (1) Observation of tested animals、microanatomy、electrophysiologic examination、histology and electromicrography showed small gaps bridging nerves was superior to epineurial repair.

结果 通过对实验动物的一般观察、显微解剖学观察、神经电生理检查、组织学观察、神经再生超微结构——透射电镜观察的研究表明，小间隙桥接法明显优于神经外膜吻合法。

The embryological studies of strawberry showed that the ovule of strawberry were hemitropous, the ovule had the obvious hypostace structure, the type of its embryo sac was Polygonum, the embryo sac was long and narrow, the type of development of embryo was the Geum type of the Asterad type, the endosperm was Nuclear type and the somatic embryo sacs happened The integral transparency technique combined with the technique of microdissection was used in this experiment The combination was an innovation in the techniques of section.

对草莓胚胎学的研究结果表明：草莓胚珠横生、胚珠具明显的承珠盘结构、胚囊发育为蓼型、胚囊狭长、胚胎发育为紫菀型水杨梅类型、胚乳核型、并有体细胞胚囊的产生。试验中采用了多种制片方法，其中将整体透明技术和显微解剖技术相结合的方法是在制片技术上的一次创新。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。