双线的

The Pb-Pb isochron of metamorphic argillite in Shuangqiaoshan Group is 1 490±68 Ma, while the Nd mode ages of Zhanggongshan Group, Shuangqiaoshan Group, Chenglang Group and Xiushui Group are 1.57 Ga, 1.89 Ga, 1.77 Ga, 1.60 Ga,respectively, less than 1.6-1.9 Ga, which suggest that they formed in Middle Proterozoic Subera.

研究结果还显示，双桥山群变质泥质岩的Pb-Pb等时线年龄为（1 490±68）Ma，而障公山群、双桥山群、程浪群和修水群的钕模式年龄分别为1.57 Ga、1.89Ga、1.77Ga和1.60 Ga，均分布在1.5～1.9 Ga之间，表明这些地层的形成年龄应小于1.9 Ga，是中—晚元古代的产物，同时表明扬子古陆南缘存在古元古代的基底。

Three and eleven she paid for those stockings in Sparrow's of George's street on the Tuesday, no the Monday before Easter and there wasn't a brack on them and that was what he was looking at, transparent, and not at her insignificant ones that had neither shape nor form the cheek of her!

她在乔治街的斯帕罗商店花三先令十一便士买下了这双长袜。那是星期二，不——是复活节前的星期一。他定睛望着的正是这双连一根线也没绽的透明袜子，而不是西茜那双毫无可取、一点样儿也没有的袜子

The fore equipment of Chemical fiber two-for-one twister,fancy twisting machne and cover Yarn Machine make different types material into double cone shape or parallel bobbims for those machines using,and suppoying the yarn merhing function for reguar materials.

化纤倍捻机、花式捻线机、包覆纱机的前道设备，把不同规格的原料筒子络绕成可在化张倍捻机、花式捻线机、包覆纱机上加工的双锥形、平行筒子，可提供一般原料的并丝功能。

Using a nonperturbative scattering theory developed by Guo,Aberg and Crasemann the angular distributions of electrons in above threshold ionization of Krypton atoms irridated by a bichromatic phase-controlled laser field of linear polarizations is studied. The bichromatic phase-controlled laser field is composed of a sequence of identical one-cycle laser pulses.

采用基于Guo， Aberg 和Crasemann发展的强激光场中的非微扰量子散射理论，研究了线偏振双色激光场中氪原子阈上电离的光电子角分布，双色激光场由一系列相同的单周期激光脉冲组成。

By the data in the images from the two frequency grating projector , the absolute phase at each pixel is then unwrapped by comparing the two wrapped phases and it is suit for the great craggedness of the measurement object.

在光学投影栅线法测量物体三维轮廓理论的基础上，本文提出了双频投影栅线法物体轮廓测量技术，通过两种不同频率的光栅投影图，能够直接得到包含物体高度信息的绝对相位值，能够实现具有陡峭边沿物体的测量，实验结果表明，利用该方法能够显著提高物体轮廓测量精度。

Friends of Grace paper products company nanshan existing tri-color, two sets of two-color watermark machine production lines, production machinery configured carton including Taiwan detachable three-color watermark machine, MY --- 2500-type rotary slotted angle cutter, FY ---2500 points±paper type pressure-ray machine, ML --- 1300-type die-cutting machine, DX --- 1300 nail box machines that can contract a variety of specifications of high, middle and low-grade, single, double corrugated boxes, carton manufacturing, at present our factory has the production of 20 million square meters in three of five criteria for corrugated box production capacity, 50,000 cartons per day of production scale.

友宏公司南山纸品厂现有三色、双色水印机两套生产线，配置的纸箱生产机械包括台湾可分离式三色水印机、MY---2500型轮转开槽切角机、FY---2500型薄刀分纸压线机、ML---1300型模切机、DX---1300钉箱机等设备，能承揽各种规格的高、中、低档，单、双瓦楞纸箱、纸盒的制造，目前我厂已具备年生产2000万平方米三层、五层标准瓦楞纸箱的生产能力，每日5万只纸箱的生产规模。

There is the problem, can divide barrows, also can two times a two-headed needle,, twice a note in the time line, if your next time online, it is easy to see the line all together.

还有就是拉线的问题，可以分次拉，也可以两次一拉（配合双头针，真的可以做到天衣无缝的说），两次一拉需要注意的是拉的时候线要在上面，如果你在线在下面的时候拉，很容易因为看不见而把线都绞到一起了。

Atfirst,stress and displacement at the end of collinear crucks are calculated by elasticity me-chanical method,then general solution of twist force at the end of collinear cracks is givenby rotation theory,single crack and double cracks are discussed emphatically.

本文计算并讨论了忽视旋转的传统理论所不能给出的裂纹端部场与场源的相互作用，首先利用弹性力学方法计算了共线裂纹组端部的应力场及位移场，然后应用旋转理论给出共线裂纹组端部的扭转力通解，对单裂纹和双裂纹情形做了重点讨论。

In the boreal summer, there are two STH ridge lines in mid-Pacific separated by the mid-Pacific trough, of which the north part (call as mid-Pacific STH ridge line) is joined with the west Pacific STH, and the south is belonged to the North America STH. The structure of them is winter pattern that the ridge axis slopes southward against height. Litter differences lie in vertical circulation structure of the steady and instantaneous mid-Pacific STH, and descent flow exists around ridge axis.

北半球夏季，中太平洋地区中高层存在双副高脊线，其中偏北的一条与西太平洋副高相连，偏南的一条系北美副高西伸脊线，其间为洋中槽；副高结构表现为冬季型，即高压脊轴随高度向南倾斜；中太平洋副高垂直环流的定常结构与瞬时结构差别不大，副高脊轴附近均有下沉气流存在。

Because of the fact, the bearing capacity of the whole drive cannot be developed well enough. To improve the performances of the load-capacity, transmission efficiency, and reliability of mechanical drive, we originally developed some designs of the double crank ring-plate-type cycloid planetary drive. The new-type drive keeps all the natural advantages, which is of multi-tooth mesh, small mesh angle, and hardened tooth flank of gears. Moreover, The drive does not need the special output unit as the ring-plate-type drive does, so that the rigidity of the output shaft becomes much higher. Since the tumbler bearing is placed outside the cycloidal gear, the size of the bearing is no longer restricted to any extent.

为大幅度提高其承载能力、传动效率和可靠性诸指标，我们创新研究出来的多种结构双曲柄环板式针摆行星传动，其特点是不仅保留着原摆线针轮行星减速器同时啮合齿数多，总法向力与总圆周力间夹角小，摆线轮与针轮齿均为硬齿面等本质上的优点；而且又具有环板式传动省去输出机构且输出轴刚性好，转臂轴承移至行星轮外，从而传递的转矩可以成倍提高的优点。

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。