查询词典 re-up

If you're not using raw strings, then Python will convert the "\b" to a backspace, and your RE won't match as you expect it to.

如果你没有使用 raw 字元串时，那麼 Python 将会把"\b"转换成一个回退符，你的 RE 将无法象你希望的那样匹配它了。

The influence of addition of Re species and the preparation methods of the ZrO2 support on the catalytic performance of Ru/ZrO2 and Ru-Re/ZrO2 catalysts for glycerol hydrogenolysis were investigated.

考察了Re组分及ZrO2载体制备方法对催化剂在丙三醇氢解制丙二醇反应中的催化性能的影响。

The massive sulphide, lead-zinc, iron, copper deposits of the former and the porphyry copper-molybdenum deposits of the latter are the main ore types in the region.3. The conclusions drawn through the research on the Re-Os isotopic geochronology of the Chilu Mo deposit are as follows:(1) the model age of the Chilu Mo ore deposit is 105.6Ma, closely to the 87Sr/86S isochrone age of the porphyric granite, adamellite. So they are closely correlated in the genesis, and both are the production of magmatic evolution of the late Yanshan.

Cu、Mo、Pb、Zn、Au为区内优势矿种。3、对赤路钼矿床的Re—Os同位素年代学研究得出如下结论：(1)赤路钼矿的矿化模式年龄为105.6Ma，与似斑状花岗岩、二长花岗岩等的87Sr/86Sr等时线年龄115±4Ma较接近，表明二者在成因上密切相关，同属燕山晚期岩浆演化的产物；(2)赤路钼矿床具有辉钼矿中Re、Os含量偏低，低87Sr/86Sr初始值和硫同位素组成接近陨石硫等特点，表明其为成矿物质来源于地壳深部，且为斑岩型钼矿床。

Based on application state and refinement mechanism of treatment agent of aluminum alloy mele,the paper analyses the effect of rare earth,Al—Ti—B interalloy and Re—AlTiB interalloy on cast structure of aluminum alloy,then the application of compound Re—AlTiC interalloy was studied.

在叙述铝合金熔体处理剂应用现状与细化机理的基础上，分析了稀土添加剂、Al—Ti—B中间合金细化剂以及Re—AlTiB中间合金对铝合金铸态组织的影响，接着对复合添加剂稀土铝钛碳中间合金作了应用研究。

The results show that Re-K-Zn compound modificator has remarkable effects in high Chromium white cast iron when the modificator has 0.5%Re+2.0%K+0.008%Zn. The modificator not only or bar-like carbides but also improved the mechanical properties of high chromium white cast iron,with its impact toughness enhanced from 7.0J/cm2 to 11.7J/cm2 and its hardness enhanced from 54HRC to 57HRC, and the wear resistance increased by 350%.

实验结果表明：Re-K-Zn复合变质剂在高铬白口铸铁中有显著作用，而且当三者的加入量约为0.5%Re+2.0%K+0.008%Zn时，能显著细化组织，使其组织中网状碳化物变为粒状或条状，提高了高铬白口铸铁的力学性能，铸态冲击韧性由原来的7.0J/cm2提高到11.7J/cm2，硬度由原来的54HRC提高到57HRC，相对耐磨性能提高了3.5倍。

Eight complexes of light rare earths with dioctyldithiocarbamate,〓 xH〓O (RE=La-Tb, except for Pm) and Nine complexes of rare earths with 5-phenyl pyrazoline dithioformate, Na RE〓·xH〓O (RE=La-Dy, Y, except for Ce and Pm) have been synthesized in air and dry N〓atmosphere, respectively.

分别在空气和氮气保护条件下，合成出八种稀土与二正辛基二硫代氨基甲酸形成的配合物〓（RE=La-Tb，除Pm外）和九种稀土与5-苯基吡唑啉二硫代甲酸的固态配合物NaRE〓（La—Dy、Y、除Ce、Pm外）。

Any high Re number flow over bodies consists of three basic flows: the flow with convection-dominant in all spatial directions, the flow with convection-diffusion competition in all directions and the flow with convection-dominant in part directions and convection-diffusion competition in part directions, which is called the interacting shear flow; the features of the three basic flows are different; their simplest conservation equations, i.e. the Euler equations, Navier-Stokes equations and diffusion parabolized NS equations, have different mathematical characteristics; there is a great disparity in domains of the three basic flows and the domains of NS equations are very small. Therefore, adopting Euler-DPNS-NS equation system to analyze and compute high Re number flows over bodies is a logical approach. There exists a mutual examined-complemented relationship of this approach with the usual one of adopting only NS equations.

主要内容如下：（1）高Re数绕流包含3种基本流动：所有方向对流占优流动、所有方向对流扩散竞争流动和部分方向对流占优部分方向对流扩散竞争流动，3个基本流动的特征彼此不同且在流场中所占领域大小彼此相差悬殊，NS方程区域很小，它们的最简单控制方程组Euler、Navier-Stokes和扩散抛物化NS方程组的数学性质彼此不同，因此利用Euler-DPNS-NS方程组体系分析计算高Re数绕流流动就是一个合乎逻辑的选择，该法与利用单一NS方程组的常用方法可以彼此检验和补充。

The derivative contracts that Gen Re wrote are not similar to the super cat insurance we're writing. We're reinsuring personal or business risks others don't want to or are unable to bear. In our view, it made no sense to be in the derivatives business.

Gen Re签订的衍生性金融商品合约与超级灾难保险保单并不相同，我们承接的再保业务是个人或企业不想或无法承担的风险，在我们看来，衍生性金融商品业务并没有存在的意义。

There are one and/or two rare earth ionsin each unit cell of RE-Silicalite-I and RE-ZSM-5synthesized by hydrothermal crystallization,which arelocated in the channel of zeolites.

水热晶化法合成的RE-Silicalite-Ⅰ和RE-ZSM-5每单胞中有1～2个稀土离子，主要存在孔道中。

At General Re, the news has turned considerably better: Ron Ferguson, along with Joe Brandon, Tad Montross, and a talented supporting cast took many actions during 2000 to bring that company's profitability back to past standards. Though our pricing is not fully corrected, we have significantly repriced business that was severely unprofitable or dropped it altogether. If there's no mega-catastrophe in 2001, General Re's float cost should fall materially.

至于General RE，情况变得比以前好多了，Ron Ferguson加上Joe Brandon与Tad Montross以及一班能干的团队在2000年实行了许多做法，让公司的获利回到过去的水平，虽然我们的订价还无法完全修正过来，但对于获利情况最差的那部份业务，我们已大幅调整价格或干脆舍弃掉，如果2001年没有再发生什么重大的天灾人祸，General RE的浮存金成本可望大幅下降。

Compared the voltage negative feedback wire-feeding speed regulation system supported by current positive feedback with the rotational speed negative feedback regulation system, the equivalent condition of the two systems is obtained. Then, a wire-feeding speed regulation circuit for the CO_2 welding machine is designed based on TL494 chip, which has the self-protective function under the condition of current overloading.

通过对电压负反馈配合电流正反馈的送丝调速系统与转速负反馈调速系统的比较，得出了这两种调速系统的等效条件，并采用电压负反馈配合电流正反馈技术，设计了一种以TL494为核心的具有过电流截止保护功能的CO_2焊机送丝调速电路。

Make a model to help you determine the optimal number of tollbooths to deploy in a barrier-toll plaza.

建立一个模型来确定在一个容易造成阻塞的收费区中应该设置的收费亭的最优数量。