A micro-collimating Fresnel lens is designed for the application of semiconductor laser. Collimating beam with 0.5m and theoretical RMS W_ ( RMS) < 0.002 λ of wavefront aberration is obtained.

Using the entropy-based width, asymptotic analysis and encircled power in the bucket, the waist width w, far-field divergence angle θ 0 and M2 factors of a truncated flatted Gaussian beam ( FGB) were studied and compared.

使用熵束宽、渐近分析和环围功率法对截断平顶高斯光束的束腰宽度w、远场发散角θ0和M2因子作了比较研究。

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The equation of X-ray flux was deduced with the transverse divergence of electron and laser beams in the interaction area being taken into account. The relationship between the size of electron and laser beams and both X-ray flux and spectra flux was analyzed.

本文在考虑相互作用区内电子束和激光束横向发散的前提下，推导了激光同步辐射源X射线通量的计算公式，讨论了激光束和电子束束腰尺寸对X射线通量和谱通量的影响。

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The result by programming calculation shows that the method is correct.

结果表明，针对CWG电路参数的计算采用的方法是正确的，计算结果可以应用于CWG设计中电路参数的选取。分析了计算电子束最小束腰的方法。

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The effect of Gauss beam waist and imaging lens F, signal light axis offset, length to wide ratio of rectangular detector and signal light axis tilt to heterodyne efficiency have been analyzed and discussed.

分别讨论了高斯光束束腰和成像物镜F数、信号光光轴偏移量、矩形探测器长宽比及信号光光轴倾斜角度对外差效率的影响。

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Relationship of laser mode parameters b_t, b_2 and beam waists w_t, w_2 varies from focal length of thermal lens were obtained.

得到谐振腔两臂中的光模参数bt，b2及束腰尺寸wt，w2随激光介质的焦距ft的变化关系。

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When the distance between Gauss beam waist of object and lens is farther than the lens focus, and the lens focus is minimum;

即当物方高斯光束束腰离透镜的距离l远大于透镜焦距f，f为极小值；

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The attosecond x_ray pulse trains emitted by a single electron intersecting with an intense Gaussian laser beam have been investigated theoretically and numerically by use of Thomson scattering of free electrons.

利用非线性汤姆孙散射的理论，从理论和数值模拟上研究了单电子在横向穿越高斯激光束束腰时所辐射的x射线阿秒脉冲列的性质。

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In this article the waist radius ( W_ ( 02)) and its location ( Z_2) of expanded beam by telescope has been proved.

本文推导出经扩束望远镜扩束后的束腰半径（W（02））和所在位置（Z2）。

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Thermo optical effect in different thickness and different beam radius for the alcoholic solution of iodine was measured by Z scan method.

用Z scan法测量了不同厚度、不同束腰半径碘的酒精溶液的瞬态热光非线性效应曲线。

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Objective To explore the clinical value of the combination therapy with bedtime insulin and daytime oral hypoglycaemic agents ( OHAS) in type 2 diabetic patients.

目的探讨睡前中效胰岛素联合口服降糖药治疗2型糖尿病的临床意义。

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Each cat-bag is priced at about$ 500 to$ 700, but buyers don't seem to mind the steep pricing at all. In fact, the designs are taking social media by storm with thousands of admirers scrambling to buy their own.

据悉，每个仿真猫咪包售价约500美元（约合人民币3175元）至700美元（约合人民币4444元），然而高价挡不住时尚潮人的热情，在日本猫咪挎包已成为高人气商品，拥有成千上万的热衷粉丝。

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Experimental results show that, compared with three typical algorithms, this algorithm has higher mean recognition rate and achieves better performance to the variation of carrying condition, clothing and time. 5.

实验表明，与三个典型算法相比，该算法的平均识别率明显更高，尤其在挎包、衣着及时间变化时识别率有大幅提高。

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This paper talks about how to find the most precise way which makes the residual size minimal in all ways of filling a satchel, discusses convergent algorithm and compares the values.

在所有装包方案中，寻找一种最为精确的装包方案，使挎包剩余体积最小，本文就该问题的快速收敛算法进行探讨并与理论值进行比较。

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That red-faced youth there was a much more tender specimen: tightly gripping a canvas shoulder-bag in both hands, he sat alone and silent with his back to everyone else.

那个红脸青年可嫩多啦：两手紧紧捏住一个小黄挎包，一声不吭地背着众人独坐。

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Emei Mountain in Gordon, I am behind him carrying a pair of shoes, a man asked me," young man, are you carrying a satchel in what?"

在登峨眉山时，我身后背着一双球鞋，有个老者问我，“小伙子，你挎包里背着什么？”

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Reader Lindsay writes, Hi, I was wondering if you could find out what crossbody bag Cameron Diaz had on in the movie Knight& Day.

我们的读者林赛问道：嘿，我想知道你们能帮我找到《危情谍战》里头卡梅隆迪亚兹用的那个斜挎包么？

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The woman was wearing the flower dress with faded color, the same with the pillow where she laid her pallid handbag.

老妇人穿了一件褪色花裙子，布料与她垫在挎包下的花边垫子一模一样。

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Sling bag: A bag with a long strap ( similar to a messenger bag), yet smaller.

和斜挎包一样有长长的带子，但是包本身比较小的。

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I can't find the key in my bag. I must have left it in my office.

在我得挎包里找不到钥匙，一定是忘在办公室里了。

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I'm so glad you found the bag and took the time and trouble to return it.

我真高兴你捡到了这挎包，还不怕费时费事来还给我。

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