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Based on the failure analysis of hot roll, this paper optimizedly adjusts alloy system and summarizes the experience of rolling wiresand improves ail processing properties. Then, it analyses the effects on some natural parameters such as alloy transfer coefficient, surfacing layers, welding current and arc voltage etc.. It confirms the fitting ageing technique. Also, it discusses the microscopic structural transformation back and forth ageing and the effects on hardness change of overlaying metal by some alloying elements including C, Cr, V, W, Mo, Ni, Mn, B, Re through OM, SEM and X-ray diffraction analyses. Finally the abrasive resistance, red hardness, thermal fatigue property and anti-high temperature oxidability are investigated in experimentation.

全文在热轧辊失效分析的基础上优化调整合金体系，总结了焊丝轧制的经验，改善各种工艺性能，分析了几个特性参数的影响，确定了适宜的时效工艺，并通过光学显微镜、扫描电镜和X-射线衍射对时效前后的显微组织转变以及部分合金元素如C、Cr、V、W、Mo、Ni、Mn、B、Re对堆焊层硬度变化的影响进行分析，最后通过试验考察了堆焊层金属的耐磨粒磨损性能、红硬性、耐热疲劳性和抗高温氧化性。

The possible reason is that doped Zr〓 ion enters the interstitial sites for its small ionic radius and no dipole complexes were formed. Monovalent ion F〓 has been reported to improve the scintillating performance greatly. Our results show that Agrand diagrams of F〓: PWO crystals obey an modified Cole-Cole equation. The crystals present similar dielectric relaxation phenomena to but have much higher activation energy than that of RE〓: PWO crystals, which originate from the 〓 dipole complexes. The co-doping of trivalent Y〓 and pentavalent ion Nb〓 does not always show a better scintillation performance than that of solely doped samples, which could be attributed to the existence of the 〓 dipole complexes, which counteract the solely doping effect.

而Zr〓由于离子半径太小，可能进入间隙位置，不形成类似的偶极缺陷；一价负离子F〓的掺入提高了晶体闪烁性能，阻抗谱测试结果表明F〓：PWO晶体Argand图符合修正的Cole—Cole方程，晶体同样表现出介电弛豫现象，并具有比RE〓：PWO晶体中高得多的弛豫激活能，可能起源于形成的〓偶极缺陷；Y〓和Nb〓双掺的PWO晶体并没有显示出两种离子单掺优点的叠加，阻抗谱测量结果表明，在双掺晶体中可能形成〓偶极缺陷，使两者掺杂作用相互抵消。

For REs, which are compared many times during the course of execution, we highly recommend using precompilation first because, again, REs have to be compiled anyway, so doing it ahead of time is prudent for performance reasons. re.compile provides this functionality.

由于正则表达式在执行过程中被多次用于比较，我们强烈建议先对它做预编译，而且，既然正则表达式的编译是必须的，那使用么预先编译来提升执行性能无疑是明智之举。re.compile 就是用来提供此功能的。

For REs, which are compared many times during the course of execution, we highly recommend using precompilation first because, again, REs have to be compiled anyway, so doing it ahead of time is prudent for performance reasons. re.compile provides this functionality.

由于正则表达式在执行过程中被比较多次，我们强烈建议先对它做预编译，而且，既然正则表达式是必须被编译的，那么预先编译对执行性能的提升是明智之举。re.compile 就是用来提供此功能的。

The ultimate source of our word is the Old French word retirer, made up of the prefix re-, meaning in this case "back," and the verb tirer,"to draw," together meaning to take back or withdraw.

这个词最早的来源是古法语单词retirer ，由在此意指&向后&的前缀re-及意为&拉&的动词 tiver 合在一起组成，意为&撤回或退回&。

RhaG hydrolyzed only the 6-C α-rhamnoside of ginsenoside Re, RhaR is able to hydrolyze the α-rhamnoside of rutin、hesperidin and naringin.

实验结果表明，RhaG只水解人参皂苷Re的C-6位末端上的一个α-鼠李糖基，而RhaR能水解芦丁、橙皮苷、柚皮苷的α-鼠李糖基。

The succedent augment of the addition of RE increases greatly the current density.

如此可以加大SiC和RE对阴极电沉积的影响。

The results obtained by the authors show that the black shales of Lower Cambrian Niutitang Formation yield a Re-Os isochron age of 537±10Ma.

笔者对华南下寒武统牛蹄塘组黑色页岩开展了 Re－Os 同位素定年研究，获得的等时线年龄为537±10Ma。

Anyone with normal hearing can distinguish between the musical tones in a scale: do, re, mi, fa, so, la, ti, do.

任何人只要具有正常的听力就能够分开音乐中的音阶，如：do， re， mi， fa， so， la， ti， do。

Anyone with normal hearing can distinguish between the musical tones in a scale: do, re, mi, fa, so, la, ti, do.

任何人只要具有正常的听力就能够区分开音乐中的音阶，如：do， re， mi， fa， so， la， ti， do。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。