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In comparison,the rhizobia in mature infected cells were larger,greater in number,varied in shape,and distributed throughout the nodule cells.The rhizobia in the mature cells also had poly-hydroxy butanoic acid and curapos.

成熟侵染细胞中,根瘤菌个体较大,数量较多,多呈棒状,少数为球形或椭球形,有很多根瘤菌还呈现明显的"T"形、"Y"形或"V"形,菌体占满了整个细胞,这时的根瘤菌大多数含有聚羟基丁酸和聚磷酸盐颗粒。

The deformation mechanism is mainly the single-slip and cross-ship, the fracture mechanism is mainly the congregation of transgranular micro-hole, and large uniform deformation occurred before tough fracture, and therefore, the ability of plastic deformation and the mechanical properties of the material were remarkably improved. These fully indicate that the new melt-treatment developed in this work is an effective and advanced technique, and further testify that the improvement of metallurgical quality of the material is the key to enhance its mechanical properties, especially its plastic deformation performance. The results of tensile and compression tests at elevated temperature also indicate that the suitable hot-working temperature range is 400~450℃. 4. A steady-state plastic flow exists during the plastic deformation of the aluminum sheet used for pressure can at elevated temperature. A hyperbolic sine relationship can be satisfied between the steady-state flow stress and strain rate by introducing an Arrhenius term which involves some thermal activation parameters, i.

压力罐用铝材中的主要冶金缺陷为Al〓O〓夹杂物、气孔及富Fe杂质相;高效熔体处理显著改善了材料的冶金缺陷的存在形态,使含杂量明显减少、夹杂物尺寸变细小且分布均匀,富Fe杂质相变为细小、分布均匀的团球状或短棒状的复杂化合物,同时也明显细化了结晶组织;此外,由于高效熔体处理有效地减少了材料中裂纹萌生源数量,因而改变了材料的塑性变形微观过程及断裂方式,主要以单滑移和交滑移进行塑性变形,断裂方式为穿晶微孔聚集型,韧性断裂前产生了大量的均匀变形,不易出现变形失稳,从而显著提高了罐用铝材的塑变能力和力学性能。

Chromosome pairing behavior in meiosis of the hybrid F1 was carried out. Results showed that in an average , 1.25 rod bivalents were observed in one PMC, meiotic configuration was 2n=14=11.49Ⅰ+1.25Ⅱ(Xta=1.25) and most of PMCs possessed 1~5 bivalens, indicating that the relatively high homeology was detected between the D genome of Ae.tauschii and the V genome of D.villosum. The morphological differences between F1 hybrids and their parents were significant. F1 plants were highly self-sterile, but partially self-fertile after treated by chromosome doubling technique.

对杂种F1花粉母细胞减数分裂中期Ⅰ染色体配对行为进行观察发现,"节节麦×簇毛麦"杂种F1平均每PMC有1.25个棒状二价体,染色体的平均构型为2n=14=11.49Ⅰ+1.25Ⅱ(Xta=1.25),大部分被观察的细胞出现1~5个二价体,表明节节麦D染色体与簇毛麦V染色体间具有相对较高的部分同源配对, D和V染色体之间存在一定的部分同源性。F1植株高度自交不育,经染色体加倍处理后能够自交结实。

In comparison,the rhizobia in mature infected cells were larger,greater in number,varied in shape,and distributed throughout the nodule cells.The rhizobia in the mature cells also had poly-hydroxy butanoic acid and curapos.

成熟侵染细胞中,根瘤菌个体较大,数量较多,多呈棒状,少数为球形或椭球形,有很多根瘤菌还呈现明显的&T&形、&Y&形或&V&形,菌体占满了整个细胞,这时的根瘤菌大多数含有聚羟基丁酸和聚磷酸盐颗粒。

The analyzed results about the forming mechanism of TiC indicate that the dendritical TiC is the primary TiC which freely grows in a continuous growth way in supercooling liquid metal before the peritectic reaction, and the short bar-like TiC nucleates and grows in β—Ti after peritectic reaction.

在对TiC形成机制的分析中认为,树枝状TiC是包晶反应之前过冷熔体中,以连续生长方式自由生长而成的初生TiC,而短棒状TiC则是包晶反应后在β-Ti的内部生核并长大而成。

The results showed that various morphologies of barite particles, such as flowerlike aggregates, spheres, rod-like superstructures etc. could be synthesized by changing the concentration of PSMA, pH value of solution, and molar ratio of Ba~(2+) to SO_4~(2-).

结果显示,通过改变PSMA的浓度、溶液的pH值、溶液中钡离子与硫酸根离子的相对比例R等实验条件能够合成各种形貌的硫酸钡颗粒诸如花形片状团聚体、球形、棒状超结构等。

Fromthese facts,It could be deduced that 8 to 14 pairs of chromosomes possessed a certaindegree of hetorology,which was directly groved to be hybrid origin of P.tomentosaaccording to the good chromosome homology and fertility of P.bolleana and thehybrids of P.tomentosa×P.bolleana,it could be further deduced that the original parentsof P.tomentosa involved probably P.bolleana or P.alba.

从终变期、中期I的染色体构型看,有数目不等的联会程度较差的单价体和棒状二价体出现,在后期I,甚至末期I亦可见到含落后染色体分裂相的细胞,由此推断可能有8~14对染色体表现出一定程度的异源性,鉴于新疆杨以及毛白杨与新疆杨杂交产生的杂种毛新杨的染色体同源性较强、育性较好等现象,进一步推断毛白杨起源亲本可能包括新疆杨或银白杨。

RESULTS: After 24 hours of preinduction, cells changed from spindle to polygonal or irregular, with many short rod-shape processes and 2-3 nucleoli. Whirlpool shape growth disappeared, and was disordered. After 1-3 hours of induction, cells gradually became round, with significant cell contraction, strong refraction, bipolar or pluripolar processes connected each other into a net. After 5 hours of induction, grades one and two branches were detected.

结果:预诱导24 h,胞体由原来的长梭形变成多角形或不规则形,伸出多个短棒状突起,可见2~3个核仁,细胞间漩涡状生长趋势消失,排列无规律;诱导1~3 h,细胞逐渐变圆,胞质收缩明显,折光性增强,双级或多极的突起互相连接呈网状;诱导5 h,突起出现一、二级分支。

The main component of WPB is von Willebrand factor, whose expression and tubulation are necessary for the formation of the unique rod-like WPBs. Different molecules such as vWF, P-selectin, CD63, Rab27A and Rab3D are recruited into WPB mediated by the AP-1, AP-3 or other transport machinery.

血管假性血友病因子(von Willebrand Factor, vWF)作为该细胞器的主要组成分子,其多聚体以管状形式在WPB中规则排列,促使WPB独特的棒状形态的形成。

It is shown that the sphere-like body-centered cubic Eu2O3 and monoclinic Sm2O3 nanoparticles obtained with sodium dodecylsulfate as surfactant and the rod-like orthorhombic Eu2O3 and body-centered cubic Sm2O3 nanoparticles fabricated with polyvinylpyrrolidone as surfactant possessed a BET surface area of 44~49 and 34~37m^2/g, respectively.

结果表明,以十二烷基硫酸钠作表面活性剂所得产物为类球状体心立方晶相Eu2O3和单斜晶相Sm2O3纳米粒子,比表面积为44~49 平方公尺/g;而以聚乙烯吡咯烷酮作表面活性剂所得产物则是棒状正交晶相Eu2O3和体心立方晶相Sm2O3纳米粒子,比表面积为3437 平方公尺/g。

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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。