查询词典 focal distance
- 与 focal distance 相关的网络例句 [注:此内容来源于网络,仅供参考]
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When 2 events occur within a same focal region and the distance between 2 events is far shorter than the distance between events and the station, the ratio of observed spectral amplitudes of the direct P and S phases is linearly correlated with the ratio of their radiation pattern factors, and radiation pattern factors depend on geometrical property focal mechanisms.
发生在同一震源区的两个地震,当地震之间的距离远小于地震到台站之间的距离时,同一个台站的直达P波、S波零频观测谱值之比与其辐射图型因子之比线性相关,而辐射图型因子取决于震源机制解的几何特性。
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In order to obtain the optimal process treatment of a laser-engraving technical, this study was to investigate the process efficiency relationships between wood species and speed, electric current and focal distance.
试验目的在于探讨木质材料激光雕刻时,木材的种类、切割速度、电流以及焦距等与加工质量之间的相关性,以获得木材激光雕刻最佳的工艺参数。
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The technique of chest imaging with short focal distance can obtain films of good quality and effectively improve radioprotective effect.
缩短焦片距摄胸部平片的方法,能非常显著地增加防护效果且片质较好。
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On Image-Collecting, trapezoidal distortion is one of the most common distortion. We present a rectification method for it. In the case of knowing the focal distance and the size of CCD, the only parameter needed to know to restore the image is the angle of the camera axis with the ground.
摘要图像采集中的梯形失真是工程中最常见的失真之一,对此本文提出一种校正方法,在已知摄像机的镜头焦距和CCD大小的情况下,仅需要知道摄像机中轴线与地面的倾角一个参数,不需要控制点,就可以恢复原始图像。
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Could the slight differences in focal distance created by corneal irregularities actually aid the eye in seeing a variety of light frequencies?
角膜的不规则缺陷导致的焦距差异,搞不好反而协助眼睛看见许多不同的光频。
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Stability of resonator with thermal lensing inside is discussed by optical transmission matrix. The fluctuation range of thermal focal distance affects the laser power and the beam quality.
运用光学传输矩阵的分析方法对内含热透镜元件谐振腔的稳定性进行了分析,讨论了热焦距的波动性对激光输出功率和光束质量的影响,提出了固体激光器谐振腔设计的基本原则。
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According to the relation spectrum resolution is inverse proportional to focal distance given a certain incident wavelength and phase number,and the theoretic formula is consistent with reported experimental result.
光谱分辨率是评价衍射微透镜分光特性的主要指标,根据标量衍射理论,给出了多台阶位相型菲涅尔透镜的设计公式,并利用球面波的传输理论推导了微透镜主焦距与光谱分辨率之间的函数关系,得出在入射波长和位相台阶数一定的情况下,光谱分辨率与中心焦距之间呈反比;理论推导的结果与已发表的实验结果一致。
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The variation of focal spot size with the spatial phase perturbation and propagation distance has been analyzed quantitatively.The results indicate that the radius of focal spot increases with the propagation distance if once the threshold condition fulfilled.
讨论了强紫外激光在空气长程传输中所产生的受激旋转喇曼散射效应对其聚焦光斑形态的变化,定量分析了焦斑半径随入射强紫外激光的空间相位畸变及传输距离的变化。
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The box beam external dimensions are big , are away from the ground to be high , carries on the dog-legged single shade beam crack detection from the opposite side , the focal distance is long , and is not easy to operate.
箱形梁外形尺寸较大,距离地面较高,从对侧进行双壁单影射线探伤,焦距偏长且不易操作。
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This paper disuissed the deduction of the focal distance f using the Gauss method and the total yoke method in an imperfect situation,namely a situation where thin lens merely involve light core errors.
在普通物理光学实验中,在理想状态下测定薄透镜焦距常采用的方法有高斯法、共扼法、自准直法等。
- 推荐网络例句
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I didn't watch TV last night, because it .
昨晚我没有看电视,因为电视机坏了。
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Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.
今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。
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I'm running my simile to an extreme.
我比喻得过头了。