He fracture surface observed by SEM has lamella structure, making the strength increase distinctly.

EM和SEM觀察發(fā)現(xiàn)鋼板的層狀晶粒在高于550℃退火后轉(zhuǎn)變成等軸超細(xì)晶粒組織，且該結(jié)構(gòu)可以阻礙裂紋的擴(kuò)展国产精品第8页，使鋼板的強(qiáng)度得到顯著提高特级无码毛免费视频。

The best lamella of left hepatecomy was the parallelism panel at 1cm of the left of the central fissure of liver.

肝左葉規(guī)則切除的理想層面為距肝中裂層面1cm的左側(cè)平行層面。

We try to find the right welding material, and welding technics for carbon dioxide gas protecting welding and SMAW, we also research on welding deformation, structure and mechanical property of the joint, and sensitivity for lamella tearing of the base metal.

研究二氧化碳?xì)怏w保護(hù)焊和焊條電弧焊這兩種不同焊接方法的焊接工藝和焊接變形黄色网站入口观看，焊接接頭的組織及力學(xué)性能久久无码人妻中文系列，母材的層狀撕裂敏感性等。

The protoxylem vessels initiated lignification in the early stage of vascular bundle differentiation, whereas metaxylem vessels and fiber walls started lignification from the middle lamella and cell comers after completion of vascular bundle differentiation. The walls of most parenchyma cells lignified after the stem reached its full height, while a few parenchyma cells remained non-lignified even the culm is 7 years old.

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Stellate quartz survey:belongs to crystal family's one, is one kind of green mica paragenesis in the quartz or in not the transparent quartz ore, includes, looks like very likely inlays fills the paillette which the innumerable golden yellow hematite's thin lamella forms, the fable reddish orange metal had the golden color reflected light, has incurs the wealth the energy, if grasps the stellate quartz in the hand, may promote the blood circulation, causes the human to fill the energy, helps us to seek the innermost feelings to be tranquil; Starts our inspiration, at the same time the stellate quartz may also strengthen the vitality and the working zeal, enhances us with Earth's affinity.stellate quartz mysterious effect: the symbol opportunity's stellate quartz, is helpful to ask the wealth, the gathering wealth.

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From the lamella shown in Fig.2-1,we take out a small and positive parallelepiped PABC,and take for an unit length in the directional dimension in z.

從圖2-1所示的薄板取出一個(gè)微小的正平行六面體PABC(圖2-3)黄网站毛片，它在z方向的尺寸取為一個(gè)單位長(zhǎng)度日本公妇中字在线观看。

The ultrastructure studies show that the number of mitochondria in the motor neurons from resistant strain are higher than those of the susceptible strain, and the thickness of neural lamella and perineurium of resistant strain is thicker than those of the susceptible insects.

棉鈴蟲抗性種群、對(duì)照種群毛片福利导航免费、同種群不同齡期幼蟲以及同一個(gè)體胸欧美老妇尻屄、腹神經(jīng)節(jié)的神經(jīng)細(xì)胞體外培養(yǎng)時(shí)形態(tài)無(wú)明顯差異，但抗性品系幼蟲運(yùn)動(dòng)神經(jīng)元內(nèi)線粒體明顯增多女人啪啪视频，且神經(jīng)圍鞘與神經(jīng)節(jié)膜厚度之比明顯增加欧美涩涩视频。

This article that focuses on the systematic and in-depth research in the current primal problem about abnormal burst pressure reservoir depress burst pressure has procured following main fruits:1 It forms the method which could obtain massive vertical static state mechanics parameters.2 In a foundation of acquisition of rock mechanics parameters,apply bent lamella that as mechanical model along with characteristic of actual geologic characteristics to analysis curvature for anticlinal strcture, get homologous tectonic stress value throug relation between the curvature and stress and different principal curvature in anticlinal structure,consequently set up laminational stress model for anticline reservoir. The block lamination for existed fracturing date has formed method of setting up mechanical model of lamination terrestrial stress by abtaining the block tectonic stress coefficients which are got by complex utilization test, laboratory test and fracturing date playback.3 Analysesing the main reason which lead to high burst pressure by considering the characteristic of reservoir geology,reservoir,and rock mechanics and reservoir damage,etc.Establishing burst pressure quantitative prediction model which provide gist for depressing construction risk and optimizing construction craft under the condition of open hole completion ,gun-perforated completion and damaged reservoir.4 Provding theoretical basis for interpreting acidification pretreatment which could depress busrt pressure by finding the relation between the influencing factors and rock machanics parameters and analysing the factors that have effect on rock mechanics parameters. Expounding the mechanism of reaction of mixed monomineral and acid from the angle of microcosmic element, evaluating quantitatively acid sensilility of different kinds of mineral effectively, and determing the first-order reaction dynamical equation of each mineral.5 Revealing rock mechanics property chage as a result of acid flooding in different condition by sandstone traumata experiment in different temperatures which combined with rock mechanics triaxial stress experiment.6 Associating damage mechanics with sandstone acidizing, established sandstone damage mechanics model in the foundation of the recognition on the rock mechanics parametric variation which is caused by acid-rock reaction in both macroscopic view and microscopic view ,also demonstrated those processes and quantitative estimated the acid busrt pressure to direct the site operation.

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Besides, the dendrite and the boride morphology in the big grain and small grains are same. All these results show that the boron addition does not influence the solidification process, but promote the β→α transformation, so still grain refined lamella can be gained at last.

這些實(shí)驗(yàn)結(jié)果表明：硼化物對(duì)Ti46Al8Nb基合金晶粒的細(xì)化作用主要不是通過改變 L →β的凝固過程得到的欧美指交视频在线观看，而是通過影響凝固后的β→α固態(tài)相變來(lái)實(shí)現(xiàn)的藏精阁无码一区二区在线。

The metal magnetic material was adopted to satisfy EMI resistance equipment in GHz frequency, due to its higher saturation magnetic susceptibility than the ferrite material, lamella structure and higher frequency in Snoek limit than that of the ferrite material.

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