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The granulite xenoliths, as the product of basaltic underplating and the representative of the present-day lower crust, are different from the local Archean granulite terrains There is a systematic variation of Sr-Nd isotopes from the granulites to the pyroxenites and the peridotites, indicating the possible crust-mantle interaction beneath Hannuoba area.

麻粒岩类捕掳所代表的年轻大陆下地壳为玄武质底垫作用的产物,与麻粒岩地所代表的古老大陆下地壳不同。橄榄岩类捕掳则具亏损特征,辉石岩类捕掳的性质介于麻粒岩类和橄榄岩类捕掳之间,但石榴子石辉石岩显示了其特殊性。

Thus, the meiotic chromosome cofigurations showed that the tetraploids and hexaploids in C.reticulata allopolyploids, and the appearance of a few tetravalents in some populations might indicatehomology of chromosomes in different genomes to some extent.

根据减数分裂的构型,我们认为,四倍和六倍分别为异源四倍和异源六倍,少数四价的存在表明染色有部分同源性。

Home position shear tests of slope rock, point loading tests and indoor AMD simulation action tests in XingQiao concave slope had show shearing strength and coherence between body layers of quartz sandstone decrease by 13.2%~21.3% after attacked by AMD, the angle of internal friction between layers is decreased by 5.0%~7.5%, in general, AMD affects the rocks mechanical property at range of 60~100m interior the perpendicular slop. Data analysis shows: 1 The actions to slope are major focused on zone of weakness, shearing strength of slope foot and AMD centre are reduced by 52% and 64.7% separately. 2 The explosion stress wave of long distance field has obviously increasing influence to disturbance amplitude value of slope with increasing of the slope height and distance, the response of the top of slope and fault region are obvious as well as damage effect; the foot of slope is with smallest disturbance amplitude value, the disturbance amplitude value of the step close to free face is obviously bigger than the interior of slope. 3 With the coupling effect of the AMD and explosion loading, the stress distribution inside of slope mainly presents characters of explosion stress field; the area affected by AMD becomes a weak area of shearing stress.

新桥深凹露天矿边坡岩的原位剪切试验、点载荷试验、室内模拟AMD作用试验表明:AMD蚀化后的石英砂岩,岩层面间的抗剪强度和粘聚力减小的幅值约为13.2%~21.3%;层面间内摩擦角减小幅值在5.0%~7.5%之间;AMD一般影响垂直边坡内部在60~100m范围内的岩力学性质数值分析表明:AMD对边坡的作用主要集中在弱化区域内,边坡的底脚和AMD作用中心区域的剪切应力减少了52.0%和64.7%;(2)随着边坡高度和距离的增加,远场爆炸应力波对边坡扰动幅值的增加趋势明显,边坡顶部和断层部位的响应突出,损伤效应明显;边坡底脚扰动幅值最小,临空面附近台阶的扰动幅值明显大于边坡内部;(3)AMD与爆破荷载耦合作用后,边坡内部的应力分布主要呈现出爆炸应力场的特征,AMD影响区域形成了一个剪切应力弱区。

Although clad diamond prevent iron family elements from eroding diamond and improve the strength between matrix and diamond, there still are many problems in applying Fe-base formulae. After the adding amount of reinforced elements is determined, the effect of the basic elements of matrix on its comprehensive performance is studied. The results show that while wc content is 15%. Fe/Ni 1: 1, 663-Cu etc 50%, Sintering temperature 920℃, temperature kept time 1. 5 mintues, matrix comprehensive preformance is best.

尽管金刚石表面镀膜隔绝了铁族元素对金刚石的侵蚀和提高了胎对金刚石的粘结强度,但以Fe代Co还存在胎的综合机械性能等问题,本文试着从材料学的强化理论出发确定了微量元素的添加量之后,用正交试验设计方法研究了胎的基本组元WC、Fe/Ni、663—Cu的加入量及烧结工艺对胎综合机械性能的影响,得出在WC15%,Fe/Ni1:1,663—Cu等其它为50%,烧结温度920℃,保温时间为1.5分时胎的综合机械性能最优。

Dynamic motion study Deep tow system often works under complex sea condition, so the vehicle responses to draw-in and let-out cable are studied, the response to heaving is studied too.

系统动态运动分析深拖系统常常工作于复杂的海况条件下,拖一般是不带动力的,仅靠母船的机动和支持保持拖的定深和避碰,因此,本文在缆系统动态分析的基础上,研究了拖对缆顶端的收放缆运动及垂荡运动的响应。

It is provided with rapid opening and closing, and convenient and safe usage, which comprises a lock body with handle (1) and a lock head (2), characterized in that at one side of the lock body (1) there is a shaft pore (7), which is combined with the rotary shaft on the lock seat to form the rotary mechanism; at the other side there is a lock port (8) with hump surface (9), which is mated with the lock tongue (16) on the lock head (2) to form the locking mechanism; at the oblique upside of shaft pore (7) on the lock body there is a hollow cavity with lock core, in which there is a lock strip (6) fixed on the lock seat which is combined with the hollow cavity with lock core to form the locking and limiting mechanism.

提供一种开启关闭轻快,使用安全方便的超低温冷冻柜的柜锁。包括带手柄的锁(1)、锁头(2),其特征是锁(1)一侧有一个轴孔(7),与固定在柜门上的锁座的转轴构成转动机构;锁(1)另一侧有一个带有驼峰(9)曲面的锁口(8)与锁头(2)上的锁舌(16)啮合,构成锁紧机构;锁(1)的轴孔(7)斜上方有一个装有锁芯的空腔,空腔内装有一个固定在锁座上的锁挡片(6)与装有锁芯的空腔组成锁锁止和限位机构。

Results of non-reducing sodium dodecyl sulphate polyacrylamide gel electrophoresis of the supernatant and aggregate precipitate formed in refolding process show that except being refolded to native egg white lysozymes, the reduced-denatured lysozymes can also form the aggregates with molecular weights being separately about 30.0 and 35.0 kD, while the reducing SDS-PAGE and the refolding results in the presence of sodium dodecyl sulphate show that these aggregates are formed chiefly through the misconnection of disulfide bonds between the reduced-denatured lysozymes, and the aggregate precipitates are formed through the non-covalent interactions between the aggregates with molecular weight being about 30.0 kD.

复性过程形成的上清和集聚沉淀的非还原电泳结果表明,除了能复性成天然态的溶菌酶分子外,还原变性蛋白溶菌酶同时还能形成分子量分别约为30.0KD和35.0KD的蛋白溶菌酶分子集聚;而它们的还原电泳和在SDS存在时的复性结果表明,这些集聚主要是通过还原变性蛋白溶菌酶分子间的二硫键错配而形成,而集聚沉淀则是通过分子量约为30.0KD的集聚分子之间的非共价相互作用而形成。

Based on Noblesse s Slender Ship Theory, where the variables are separate by expanding exponential function, the wave resistance formulae of a trimaran are obtained.

为快速优化三船的片位置,基于Noblesse细长理论,按照一阶Kochin函数的表达式,在指数函数展开分离变量方法的基础上,本文推导了三船兴波阻力的计算公式,并根据这些公式实现了三船兴波阻力的快速计算。

By studying the deformation and evolutionary sequences around the Panshan granitic pluton, east-central Yanshan orogenic belt, and 40 Ar/ 39 Ar thermochronological test and analysis,we present the structural evolutionary process of the overlying strata before pluton intruded as well as it was intruding. The sequences of regional deformation are as follows: before the intrusion of Panshan granitic pluton, the N-S trend contraction in the east-central Yanshan orogenic belt took place, which resulted in the regional EW-trending Malanyu multi-fold and Jixian thrust fault; then Panshan granitic pluton intruded into the south limb of the Malanyu multi-fold and cut-through the Jixian thrust fault; later, the reactivity of the Jixian thrust fault cut off the synclines around thePans han granitic pluton.

通过对燕山东段盘山花岗岩岩周缘构造变形特征、演化过程的研究,并结合40Ar/39Ar 热年代学测试和分析,提出盘山岩侵位前、侵位时其上覆岩层的构造演化过程:三叠纪末(210-200 Ma)盘山岩侵位前,燕山中东段受南北向挤压作用形成了近东西向的马兰峪复背斜和蓟县逆冲断裂;盘山岩侵位于先期形成的马兰峪复背斜南翼,并侵蚀了蓟县断裂;蓟县断裂的后期再次活动截切了盘山岩的周缘向斜。

PCR amplification of di-, tetra- and hexaploid materials using genome-specific primers indicated that the NUMT inserted in the nucleus when the tetraploid wheat speciated or after that time and retained until the hexaploid wheat speciated.

用基因组特异引物扩增二倍、四倍和六倍小麦,结果表明该插入事件发生在四倍小麦形成时或形成后,并且一直保留到六倍

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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。