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Methods 252positive samples of blood culture were an-alyzed according to the lag phase,loganithmic growth phase and stationary phase of bacterial growth curve.

方法将血培养阳性标本252例，按照细菌的生长曲线的三个阶段--迟缓期、生长期、稳定期进行分析犤1犦。

The results show that:(1) after MA for 20h, single phase bcc nanocrystalline supersaturate solid solution formed in Fe84Nb7B9 and Fe80Ti8B12 alloys; the thermal stability of nanocrystalline microstructure in Fe80Ti8B12 alloy was improved significantly than that in Fe84Nb7B9 alloy, and the decomposition temperature of supersaturate solid solution decreased in Fe80Ti8B12 alloy.(2) under 30MPa/900℃/0.5h hot-press sintering conditions, the relative density of Fe84Nb7B9 and Fe80Ti8B12 bulk alloys were 96.7% and 95.5%, respectively. Compared with Fe84Nb7B9 alloy (muti-phase microstructure), Fe80Ti8B12 alloy was composed of superfine crystalline (50~200nm) of single phase α-Fe;(3) the magnetic properties of Fe80Ti8B12 bulk alloy σ(subscript s=198.6emu/g, H=54.6Oe were more excellent than that of Fe84Nb7B9 bulk alloy σ(subscript s=162.9emu/g, H=105.1G, it was related to the different phases formed during hot-press sintering and the grain size of nanocrystalline powder.

结果表明：(1)20hMA后，Fe84Nb7B9和Fe80Ti8B12均形成了单相bcc纳米晶过饱和固溶体，相对前者，后者纳米晶组织热稳定性明显提高，过饱和固溶体相分解温度略有降低；(2)在30MPa/900℃／0.5h热压条件下，Fe84Nb7B9和Fe80Ti8B12块体合金相对密度分别为96.7%和95.5%，相对前者，后者由超细晶(50~200nm)单相α-Fe组成；(3)Fe80Ti8B12块体合金软磁性能σ(下标 s=198.6emu/g，H＝54.6Oe明显高於Fe84Nb7B9块体合金σ(下标 s=162.9emu/g，H＝105.1Oe，此与纳米晶粉末在热压烧结过程中所形成相的种类和晶粒尺寸大小有关。

Moreover, the hot compressive deformation behavior of the RS/PM AZ91 magnesium alloy and AZ91 alloy matrix composite were also investigated, the conclusions are drawn as follows:1. The processing parameters of the atomization-twin rolls quenching technology were optimized as follows: the diameter of the nozzle 1mm, the wheel velocity 25m/s, the pressure of atomization gas 0.3MPa and Ar gas for melt injection 0.1MPa. The RS AZ91 alloy flakes exhibited fine and uniform microstructures. When the flakes were extruded at 673K, extruded velocity of 0.1mm/min and extrusion ratio of 25:1,the magnesium alloy rods with clean surface, uniform dimension and excellent mechanical properties were obtained.2. The RS AZ91 magnesium alloy powders prepared by atomization-twin rolls quenched technology exhibited fine equiaxed grains with the grain size of 1-3μm, the phase constituent included supersaturate solid solution phaseα-Mg and miner fineβ-Mg_(17)Al_(12) phase. The as-extruded materials also exhibited equiaxed grains with the size of 5-7μm and a large number of fineβ-Al_(12)Mg_(17) and fewer AlMg_2Zn phases were detected in the alloy.

本文还研究了快速凝固/粉末冶金AZ91镁合金热压缩变形流变应力行为，快速凝固/粉末冶金法原位生成Mg_2Si增强AZ91镁基复合材料，经过系统的研究，获得如下结论：1、雾化-双辊急冷法在下列工艺参数组合下：双辊线速度25m/s；喷嘴直径1mm；熔体压射压力0.1MPa；雾化气体压力0.3MPa。，可获得宏观尺寸细小、微观组织均匀细小、综合性能优良的的快速凝固AZ91镁合金细碎箔带，快速凝固箔带在挤压温度为673K、挤压速度为0.1mm/min，挤压比为25：1时，可获得的外表光洁、尺寸均匀、组织性能优异的镁合金棒材。2、雾化-双辊急冷法制备的AZ91镁合金粉末态为细小等轴晶组织，晶粒尺寸1-3μm，组织为α-Mg过饱和固溶体和微量的细小β-Mg_(17)Al_(12)相组成；粉末挤压棒材为等轴晶组织，晶粒尺寸5-7μm，组织中含有大量细小的β-Al_(12)Mg_(17)以及AlMg_2Zn析出相，室温力学性能，抗拉强度383MPa，屈服强度275MPa，断后伸长率7.5%。

Instead of triggering on each pulse, a phase lock technique examines the relative phase between each oscillator and many of its sync pulses and adjusts oscillator frequency so that the average phase discrepancy is small.

锁相技术靠检查各振荡器和许多同步脉冲之间的相位关系来调节振荡频率，使平均相位偏差很小，而不是用每一个脉冲进行触发。

The Huade Group underwent at least two phases of deformation:the early phase of deformation gave rise to ENE-trending synclinorium and the late phase was marked by tectonic superimposition,forming NNW-trending folds. The main phase of deformation likely occurred in ~2.0 Ga B.P.The deformation of the Huade Group is related to a Paleoproterozoic orogenic event along the northern margin of the North China Craton, which has great significance for the study of accretion and breakup of the North China Craton.

化德群经历了两期构造变形，早期为北东东走向的复式向斜，晚期又遭受了构造叠加，形成了北北西向褶皱构造，其主期变形可能发生在2.0 Ga左右，它的褶皱造山是华北克拉通在古元古代向北增生的体现，这对研究华北克拉通的增生，裂解具有重要意义。

In this thesis, potassium niobate tantalate powder has been suceessfully synthesized by the effective hydrothermal method and solvothermal method; after that, high pyroelectric property 0-3 KTN/P composite material were prepared using solvent casting followed by compression moulding, taking tetragonal ferroelectric phase KTN as function phase, P as matrix phase, respectively.

本文采用高效的水热和溶剂热法合成了钽铌酸钾纳米粉体，随后以四方铁电相含量高的KTN粉体为功能相，以P为基体，用涂覆法制备出高热释电性能的0-3型KTN/P复合材料，并对粉体和复合材料的制备工艺和性能进行了相应的研究。

The main reason is that bending-strain induces the microstructure phase-transformation of the pentacene polymorphic film from "thin-film phase" to "triclinic bulk phase",which results in the performance degradation of OTFTs.

其主要原因是，pentacene薄膜在反复的变化弯曲作用后，薄膜内部发生了微观结构的相转变过程，从而导致器件性能的降低。

3At%. Based on the measurement of the grain size, phase contents and their composition, the composition of the trinary interface phase was determined to be 〓, with the thickness of interface phase about 1. 3nm, corresponding to 4～5 atomic layers, and with a lower atomic density as well as a high degree of disorder. In the case, the obtained nano-structure remains stable, unchanged against the continued electropulsing.

在晶粒尺寸和相含量及其成分测定的基础上，确定出三元界面相的化学成分为〓，界面相的厚度约为1.3nm，相当于4～5个原子层，而且具有低原子密度和高无序度，此时，纳米结构相对稳定，在延长的电脉冲处理过程中基本保持不变。

Methods 53 cases of the disease were treated with core decompression and bone graft through trochanter. There were 21 cases of phase Ⅱ,25 cases of phase Ⅲ and 7 cases of phase Ⅳ based on Ficat classification.

53例股骨头缺血性坏死患者行经转子髓芯减压植骨术，其中Ficat分期Ⅱ期21例，Ⅲ期25例，Ⅳ期7例。

Therefore we believe this phase diagram can apply to phase diagram analysis of trona carbonation and phase diagram calculation.

最终认为该相图同样可用于天然碱碳酸化相图分析与相图计算。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷