一比二的

The least absolute deviations are using widely used in engineering because of it s robustness,but the algorithm solving the least absolute deviation is not efficient.

最小一乘在稳健性上比最小二乘好，使得最小一乘在工程中得到广泛的应用，但求解最小一乘的算法并不理想；本文根据最小一乘的性质，把最小一乘问题变为组合优化问题。

Second base umpire Alfonso Marquez called Phillips safe, though replays showed Lugo's foot reaching the bag before Phillips' foot.

但还是被二垒审判安全上垒。尽管Lugo的脚确实比灯泡兄的脚早一步踏上二垒。

The second baseman went 0-for-2 at the plate in the Yankees' 8-0 loss to the Pirates, but he made the hour-long trip with no problems and stayed in the game for its entireity.

二垒手上场二之零的表现，洋基以八比零输给海盗，但他做了长达一小时的测试确定没问题，他全程参与球赛。

Compared with the stable group, the early drinkers were almost one-third more likely to have metabolic syndrome. In addition, their risk of being abdominally obese was 48 percent higher, while their odds of having low HDL cholesterol were 62 percent higher.

与稳定派相比，第一类人有三分之一多的患有新陈代谢综合症，另外，他们患大肚腩的几率比前者高百分之四十八，而患高密度脂蛋白含量低比前者高百分之六十二。

In the early games, 22-year-old Jaqueline Carvalho dominated the opposition with her ferocious spikes (not to mention her sparkling defense), partly due to the absence of another star player, Fabiana Claudino, whose playing time was also limited during the first round due to an injury.

二十二岁的杰奎琳。卡瓦罗令人恐怖的扣杀在接应二传这个位置上无人匹敌，部分原因是由于队中另一主力球星法比娅娜。克劳迪诺因伤在第一阶段出场时间有限。

Seven polyimides were synthesized and their films were uniaxially stretched to observe the variation in their in-plane birefringence. The creep method of DMA was used instead in stretching the PI films. The preload force and isothermal temperature were the two controlled factors that were chosen on the basis of the lowest stretchable force and lowest temperature for each PI structure. The elongation ratio of a PI film was then decided by the stretching time.

在此是以DMA 的另一种试片拉伸方式-Creep模式，来取代之前的Stress Relaxation模式对PI薄膜试片进行拉伸实验，Creep模式是以最低的拉伸力量及最低的拉伸温度的前提下，选择Pre-load Force与Isothermal Temperature这二项为拉伸控制因素，在此状态下的PI薄膜拉伸比是取决於其拉伸的时间，此种拉伸模式将可得到较高的拉伸比，而高的拉伸比是获取较高薄膜双折射率的必要条件。

The following sentence contains them all:"A rough-coated, dough-faced, thoughtful ploughman strode through the streets of Scarborough; after falling into a slough, he coughed and hiccoughed."

批注：汉字中读音最多的字是&那&，有na的一声、三声、四声，ne二声、nei三声、四声、nuo二声、四声共8个不同发音。比&和&字发音多不少。

This problem is also important and valuable in Nonlinear Optics. It will be very helpful to understand how the aberrations affect the course of three- wave mixing, such as the change of conversion efficiency, the distribution of intensity and phase.Small signal solution of aberrated second harmonic generation is deduced from three-dimension three wave coupling functions. The numerical work gives out lot of results of different aberrations. The effects of the fundamental waves aberrations, which will change the conversion efficiency, distribution of intensity and phase in the frequency conversion, is analyzed. It shows that when walk-off and diffraction effects could be ignored approximately estimation of the phase distribution of second-harmonic wave could be done. The far field divergent angle and second moment radius of harmonic wave will vary with the aberration of fundamental wave, but the far field divergent angle will be obviously smaller than that of fundamental wave. The phase distribution of both fundamental and harmonic wave is measured using Hartmann-Shack wave front sensor in the experiment with 1064nm and 790nm lasers, respectively. Results are given.

首次从三维三波相互作用方程组推导得到了位相畸变光束倍频的小信号解；通过建立国防科学技术人学研究生院学位论文三维数值模型，编写相应仿真程序，首次得到了位相畸变光束倍频过程的大量计算结果，深入细致地研究了位相畸变光束经非线性光学频率变换后谐波的转换效率、光强分布、位相分布以及影响它们的各种因素；得出谐波的远场发散角和光斑二阶矩的变化规律会因为基波像差的不同而不同，但谐波的远场发散角明显地比相应基波的小的结论；得到了在走离效应和衍射效应等影响许多因素可以忽略的情况下，位相畸变传递到二次谐波的估算式；举例分析了KDP三倍频方案中，基波位相畸变对二次谐波和三次谐波的影响；实验工作中，用哈特曼一夏克传感器分别对IO64nm倍频过程和790飞秒超短脉冲倍频过程中的基波和谐波的位相分布进行了测量，给出了相应结果。

Products forming a spin-free plastic weld the whole, than the existing FRP, PP, PVC, steel-lined rubber, steel-lined FRP performance better than stainless steel, enamel, glass-lined product performance, low cost, non-toxic and tasteless products, for cleaner production, more important is the life of an ordinary glass fiber reinforced plastic is also more than twice.

产品旋塑整体一次成型无焊缝，比现有玻璃钢、 PP、PVC、钢衬橡胶、钢衬玻璃钢使用性能好，比不锈钢、搪瓷、搪玻璃产品使用性能好，价格低廉，产品无毒无味，适合清洁生产，更主要的是使用寿命也是普通玻璃钢的二倍以上。

Finally both SNR and slope of modulation transfer spectra of I2 with different absorption length were compared experimentally while I2 cell temperature was held at -15 ℃. The results of comparison showed that modulation transfer spectra was optimal at three-pass (120 cm).

实验上比较了碘池温度为-15 ℃时一倍程(40 cm)，二倍程(80 cm)，三倍程(120 cm)和四倍程(160 cm)的光谱信号信噪比和谱线中心斜率，得到三倍程时信号信噪比和谱线中心斜率为最大，估算得到相应的激光稳频精度为9×10-14(1 s积分时间)。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。