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The contact fatigue strength was measured after the 20CrNi2Mo and 15CrNi6 steel used asdragging gear on quasi high speed locomotive was carburized and quenched as well as peened,com-pared with that of 20CrMnMo steel.The results shown that the contact fatigue strength limits of thesethree types of steel carburized and quenched essentially same,and the contact fatigue strength Iimit hasbeen increased by 5 porcent after peening,and that the failure appoarances of all contact fatiguespecimen were delamination ...

对20CRrNi2Mo、15CrNi6及20CrMnMo渗碳淬火齿轮及15CrNi6渗碳淬火＋喷丸处理齿轮进行了弯曲疲劳试验，介绍了齿轮试件的设计与加工、试验装置与夹具、试验方法及试验数据的统计处理，试验结果表明，20CrNi2Mo和15CrNi6渗碳淬火齿轮在R＝0.99时的σFlim分别为530MPa和375MPa，与20CrMnMo渗碳淬火齿轮相比，弯曲疲劳强度分别提高80％和27％。15CrNi6经渗碳淬火＋喷丸处理齿轮在R＝0.99时的σFlim为490MPa，比未喷丸处理者提高30％。

In a sudden snowstormswept over the earth, Liaoning, rampaged through the millennium hasbeen the history of this ancient city

一场突如其来的暴风雪席卷了辽宁大地，横扫了这座已有二千年的历史古城。

Subject to the foregoing provisions, where the insurer pays for apartial loss, he acquires no title to the subject-matter insured, or suchpart of it as may remain, but he is thereupon subrogated to all rights andfrom the time of the casualty causing the loss, in so far as the assured hasbeen indemnified, according to this Act, by such payment for the loss.

2受前述各条款制约，在保险人赔偿部分损失之场合，他并不取得该项保险标的或其存留部分的所有权，但是，根据本法，通过赔付此种损失，自造成损失的事故发生之时起，保险人代位取得被保险人对保险标的的一切权利和救济，但以被保险人已获赔偿额为限。

The results corresponding hasbeen drawn a lot,however,studies on FRP Tubed reinforced concrete columns have been verylimited(The FRP tubes are used to transversly confine concrete,not bearing the axialloads).Based on experimental and theoretical analysis,the mechanical properties of the GFRPtubed reinforced concrete columns under axially loaded are researched.

而针对内置钢筋的FRF套管混凝土结构的研究较少(套管指FRP管不承受轴压力，仅起约束作用)，本文通过试验和理论分析，着重研究了GFRP套管钢筋混凝土组合柱的轴压力学性能。

Every wave of trouble hasbeen wafting you to the sunny shores of a sinless eternity.

每一波苦难的波浪都使你飘向无罪永生的黄金海岸。

But the picture hasbeen engraven in my mind and cannot be erased.

不过，这个画面，在我的脑海里却永远是抹不去的。

The epitaxy of Fe grown on Pd(100)surface by pulse laser deposition hasbeen studied.

研究了室温下Fe在Pd(001)表面的激光分子束外延及其磁学性质。

He said the subsidy hasbeen inforce for 30 years and was mostly intended for workers inruralareas who needed to walk long distances every day.

他表示，&步行奖金&政策已经实行了30年，主要是针对那些居住在郊区、每天需要长距离步行上班的公务员。

Ever since, the quest for the perfect red rose hasbeen the Holy Grail of rosarians: a fragrant, disease-resistant,long-lasting, long-stemmed, reblooming, perfectly formed rose witha clear non-fading vivid red color.

这种玫瑰应具有芳香的气味、抵御疾病的能力、持久的花期、修长的花茎、反复开花的本领、优美的体态以及不褪色的纯鲜红颜色。

Delta sleep-inducing peptide was the first sleep-factor whose chemical structure hasbeen identified.

Delta－诱眠肽是第一个已阐明化学结构的睡眠物质。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！