双

The first writer of this paper designs the two-side electronic extensometer, which also has two edges but it can be fastened on two symmetric sides of the tensile specimen.

设计的双侧电子引伸计，只用两个刀刃而能测得试样的对称双侧变形的平均值，这样便扣除了弯曲变形的影响而得到了纯粹拉伸伸长。

The exterior of the product is of double-globe shape, light-transmittable shade and luminous source is closed in with round high-transparent organic glass shade, and double luminous sources are adopted; the above is a lighting main lamp and a auxiliary light-changeable lamp of cylinder shape is at the below. The entire light fixture full of modern air and practical value is the product with comparatively more favorable ratio of function and price.

本产品外型设计采用双圆形灯具造形，透光罩和光源用高透明度有机玻璃园罩封闭，并采用了双光源系统；一只照明主灯在上，一只变光圆柱副灯在下，当天黑后主副灯同时开始工作，深夜副灯关闭，主灯工作至天亮自动关闭，整个灯具极具现代气派和实用价值，是目前太阳能灯具中有较高性能/价格比的产品。

In view of the coefficients of CDF9/7 wavelet filter are irrational number, we use the trigonometric function transform to factorize the perfect restruction and the biorthogonal conditions of biorthogonal wavelets filter banks, then optimize the coefficients of the original 9/7 wavelet filter banks, consequently a novel 9/7 wavelet filter banks with binary digit coefficients can be obtained.

2针对CDF9／7小波系数为无理数的缺点，对CDF9／7小波滤波器组的完全重构条件和双正交条件进行三角基函数变换和因式分解，并对求出的小波滤波器系数进行优化设计，得到一组滤波器系数都为二进制分数的9／7双正交小波滤波器组，大大降低了离散小波变换的算法复杂度。

A fast, shallow motion in the cheeks as your baby first latches on that up and down.

8226；宝宝刚吸住乳头时，双颊会有一个快而浅的动作，然后双颊转为

Added to this were a pair of shocking orange rubber garden gloves, a truly insane smile, and a pair of google-lenses made out of the halves of a left-over ping-pong ball spotted with a felt pen.

增加到这是一双令人震惊的柑橘橡皮花园手套，一个真实患精神病的微笑和一双 google-左边-上面的乒乓球的二等份了解的透镜以一枝毛毡钢笔看见。

To this end, the fibre sections are connected to a double ferrule which is fixed to the converters by means of a clamp.

本发明的目的特别是这样实现，即光纤部段与一个双套圈连接，双套圈借助于一个夹板固定在转换器上。

The FSR includes a driven unwind, closed loop taper tension control, slow down festoon with a splice table and web clamps and a twin rewind module with twin lay-on rollers and dancer tension control.

在FSR包括驱动放松，闭环锥度张力控制，减缓绳与剪接表和网络钳和一个双倒带模块，双下岗的辊和张力控制舞蹈演员。

The Omega FSR includes driven unwind, closed loop taper tension control, slow down festoon with splice table and web clamps, twin rewind module with twin lay-on rollers and dancer tension control.

欧米茄FSR包括驱动放松，闭环锥度张力控制，减缓绳与剪接表和网络联接，双倒带模块，双下岗的辊和张力控制舞蹈演员。

Four double-blind trials have reported that continuous use of feverfew leads to a reduction in the severity, duration, and frequency of migraine headaches, 60 61 62 63 although one double-blind trial found feverfew to be ineffective.

64在偏头痛的长期预防最常用的草药菲沃菲。59四双盲试验报告说，菲沃菲连续使用导致的严重程度，持续时间减少，以及，偏头痛的频率60 61 62 63虽然一个双盲试验发现小白菊是无效的。64

Feynman′s path integral theory is used to analyse quantitatively the electronic multiple slit interference state .

运用量子理论分析了电子双缝、多缝的衍射、干涉，与光的双缝、多缝的衍射、干涉完全一致。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。