您要查找的是不是：
- This paper is concerned with the laser ignition performance of energetic material affected by the light spot diameter using photoelectric method. 摘要用光电探测法研究了激光光斑直径对含能材料激光点火特性的影响。
- Aiming at the motorcycle cylinder moving characteristics,the influence of the technological parameter,spot diameter and hardenability in the laser surface treatment. 针对摩托车汽缸的运动特点，分析了激光处理工艺参数、光斑直径和硬化带面积、光束运动模式、硬式匹配等因素对激光处理的影响。
- The effect of the irradiation time,laser intensity and spot diameter on the mass ablative rate of carbon fiber reinforced silicone modified epoxy resin composite was analyzed respectively. 分别分析了入射激光的辐照时间、强度和光斑直径对碳纤维增强有机硅改性环氧树脂复合材料质量烧蚀率的影响规律。
- A prism beam-splitting system used in hologrphic maker is presented. It has the advantage of compact structure, good reliability, high resolution and small spot diameter(< 0. 1 mm). 提出一种可用于像素全息机的棱镜分光系统，该系统结构小巧，稳定性良好，分辨率高，所形成的光斑尺寸小于0.;1mm；
- Bending angle about material augments along with laser power and laser light spot diameter augment, but bending angle about material minishes along with laser scan rate and material hardness augment. 随着激光功率和激光光斑直径的增加板材弯曲角度增大,但随着激光扫描速度和板材厚度的增加弯曲角度减小。
- In order to obtain the laser beam with better beam quality, less spot diameter and higher power density in laser manufacturing (LM), Gaussian beam used in LM was transmitted and transformed. 摘要为了获得光束质量较好、光斑尺寸较小、功率密度较高的、适合激光加工的激光束，对激光加工中的高斯光束进行传输与变换。
- It is shown that the threshold ratio of the laser power to the beam spot diameter P/d for penetration welding is consistent with different beam spots. 结果表明,以激光功率与光斑直径之比作为深熔焊接阈值的表征参量,深熔焊接阈值与光斑大小无关;
- Spot diameters of just a few thousands of an inch can readily be attained with convenient short focal length lenses. 用普通的短焦距透镜不难得到直径只有几十微米的光点。
- This lens can magnify 20 diameter. 这个透镜能放大20倍。
- I'm afraid we are in for a spot of trouble. 恐怕我们是一定要遇到麻烦了。
- The diameter of the tree-trunk is about 2 meters. 这树干的直径大约是2米。
- He is hit by a falling tree and killed on the spot. 一棵树倒下来，把他当场砸死了。
- I've always had a real soft spot for him. 我一向对他挺有好感。
- The second part is the high spot of this book. 第二部分是这本书的最精彩部分。
- His activities in London center around this spot. 他在伦敦的活动以这个地点为中心。
- The axis of a circle is its diameter. 圆的轴线是其直径。
- Luckily there was a doctor on the spot. 幸运的是现场有一位医生。
- Measure the diameter of this circle. 量一下这圆的直径。
- This cross marks the spot where she died. 这个十字符号标明她死去的地点。
- We must gauge the diameter of wire first. 我们必须先测量电线的直径。
