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As a result, some ideas about the fabrication are put forward.The EPMA experiment results show that the main element such as W, Mo, Ti, Ni, Cu, Fe element are changed gradually in W-Mo and W-Mo-Ti FGM. In the layer rich in W, the grain are intervained and are mixed mechanismly. The same is to the layer rich in Mo and W-Mo. These grain felt up by some sinter. In Mo-Ti layer rich in Mo, the grains are also mixed mechanismly. Ni, Cu, Fe element assembled at interface. Ni melt by Cu plays an vital role in sinter effect. The microstructure characteristics result show that the compactness of W-Mo and W-Mo-Ti FGM is good.

电子探针实验结果表明W-Mo系、W-Mo-Ti系梯度功能材料中主要元素W、Mo、Ti、Ni、Fe、Cu分布整体上具有梯度变化规律,发现富W、富Mo、W-Mo混合中颗粒交错分布,基本上以机械混合的形式存在,颗粒之间主要靠烧结剂的粘结作用实现致密化;以Mo为主要组分的Mo-Ti混合,也是以机械混合的形式存在;Cu溶解于Ni形成固溶体更好地起到活化烧结能力,Ni、Cu、Fe在宏观层间界面富集,有利于烧结致密化。

Between 3.0 K and the triple point of neon (24.5561 K) T90 is defined by means of a helium gas thermometer calibrated at three experimentally realizable temperatures having assigned numerical values and using specified interpolation procedures.

ITS-90划分了几个主要温和附属温,并对每个温的温度T90 给出了详细的规定。这些温之间有重叠交叉部分,当重叠域出现T90定义不唯一的情况时,两种定义同等适用。

To examine the hydrodynamic connectivity of the surface ocean in the reefs of the Belize Shelf, the upstream and downstream areas for the coral reefs of the Turneffe Islands and the Glovers Reef Atolls are calculated.

为了测试伯里兹大陆架海表面珊瑚礁之间的水动力连接特性,计算了位于Turneffe Islands Atoll和Glovers Reef Atolls珊瑚礁的上游颗粒来源和下游颗粒耗散,在30天内到达这两处环形珊瑚礁的近表面颗粒的可能来源包括该两者周围的浅水域、两者之间的深水域和洪都拉斯Bay Islands的沿岸水域,Turneffe和Glovers Rcef Atolls 30天下游耗散分别覆盖了伯里兹大陆架的中部和南部水域。

Reliability evaluation of existing structures is shown from the angle of artificial neural network. The influencing factors and deformation characteristics of buildings above goafs are summarized based on the code of coal pillar design and pressed coal mining for buildings, water-bodies, railroads and main mine roadway. The model of neural network is build to solve the problems about complex influencing factors and long evaluating time of building evaluation. BP network model compared with traditional way has strong practicability and extension value.

本文从人工神经网络的角度着手,基于国家煤炭工业《建筑物、水体、铁路及主要井巷煤柱留设与压煤开采规程》,分析了采动建筑结构的影响因素和变形特性,运用已有的采动建筑物可靠性评估实例,建立了BP人工神经网络可靠性评估模型,对采动在役结构可靠性进行了评估,较好地解决了采动建筑物可靠性评估影响因素复杂和耗时长的问题。

Make use of the grid model inspatial analysis of MAPGIS to draw the isoclines. At last, the author divided QingdaoCity into "fitting area of dump of landfill, restricting area of dump of landfill andforbidding area of dump of landfill". And based on it, the author elected ten bestlandfill area in these areas. And this paper has provided a reference for the sitesselection of municipal waste landfill of Qingdao City in the future.

对每单元格内的影响因素进行较为详细和全面地对比研究分析,然后对通过层次分析法得到的单元分值利用MAPGIS空间分析中的DTM分析grd模型绘制等值线图,对青岛市研究进行适宜性分,依次划分为&可填埋、限制填埋和禁止填埋&,并在此基础上优选出了十个最佳填埋域,为青岛市未来垃圾填埋场的选址提供了参考。

In mid-period, negative replication bands were located in the centromere, the terminal and interstitial regions of the chromosomes.

发现核仁缢痕、深染居间C-带、Ag-NORs、CMA3明亮和中复制带浅染NORs位置基本一致, C-带阳性和中复制带浅染具有对应性。

Based on fine structural interpretation on seismic profiles of buried-hills in Huanghua depression in the Bohai Bay basin and outcrop survey in the western Shandong uplifted area and the intracontinental orogeny of Yanshan mountain, the paper has studied characteristics and distribution of pre-tertiary structural styles in the Bohai Bay region.

通过渤海湾盆地内黄骅坳陷等潜山地震剖面的精细解释,结合周缘隆起露头野外构造考察,对渤海湾地前第三系主要发育的拉张构造、挤压构造、走滑构造、负反转构造、重力滑动构造等5种进行了研究,这些构造在南北向上大致以沧东断裂、北西西向上大致以张家口-蓬莱断裂和齐河-广饶断裂为界分为六个,不同之间的构造线走向及构造样式组合存在较大差异。

The W-CDMA overlay GSM means use tuneable notch filters at the CDMA transmitters and receivers.The spectrum of notch filters is just the spectrum of GSM.

窄带覆盖的基本原理是N-CDMA信道不与GSM频带在同一小的同一扇重叠,而是和N-CDMA扇相邻小里的,且与该扇不相邻的GSM扇重叠。

In the light of adaptability of movable platforms, stratum structural characteristics and sedimentary characteristics, the thesis divides the study area into four subzones as follows: engineering geological subzone of the recently deposited tidal flat, engineering geological subzone of the Gaizhou Tidal Flat, engineering geological subzone of offshore areas, and engineering geological subzone of tidal ditches; and amenity of ocean engineering is discussed in each subzone.

论文根据移动式平台的适应性及地层结构特征、沉积物性质,将本研究域分为新近潮滩工程地质、盖州滩工程地质、浅海工程地质、潮道工程地质,分讨论了海洋工程的适宜性。

These ECOPATH models showed that the proportion of benthic invertebrates was higher, but that of macroalgae was lower in soft-coral-dominated systems than in stony-coral-dominated systems. Sedimented organic detritus was higher in sea-anemone-dominated systems.

模式结果显示不同群聚之生态系的差别除了优势生物群聚不同外,软珊瑚的底栖无脊椎动物比例较硬珊瑚高,且藻类较少,而海葵的沉积有机碎屑较多,但三的鱼类生物量都不多。

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推荐网络例句

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。