When the formulas are applied, the scale of the observation system due to the large focus aperture Angle must be enlarged, or else the empirical formula will be invalid.
在实际应用中，由于聚焦孔径角加大，观测系统范围也必须相应加大，否则经验公式失效。
The effect of some factors on the transmissivity of fiber optic image inverter is analyzed, and the relation of the transmissivity between radial position and aperture angle is given.
本文论述光纤倒像器中扭转光学纤维的形状和尺寸及其特别的传光性能。
The main parameters that effect horizontal resolution of migration imaging were identified as medium velocity, dominant frequency of seismic wavelet and aperture Angle of migration processing.
结果表明，影响偏移成像水平分辨率的主要参数是介质速度、地震子波主频和偏移处理的孔径角。
The Angle of conical structure and the distance of round aperture were adjusted, the structure and production of distribution blade of blender were improved.
调整了筒体倒锥体的角度及环缝隙的距离，并改进了搅拌器的分散叶片的结构和制作。
The essence of the fact that wideband signal can not be effectively transmitted using narrowband phased array in scenarios with large aperture and scan Angle is given.
以线性调频信号为例，揭示窄带相控阵在大孔径宽扫描角情况下不能有效发射宽带高分辨信号的实质。
The quantity in relation to the coupling efficiency of an optical fiber:lasing mode, divergence angle, numerical aperture, focal diameter and precision optical fiber coupler are discussed.
围绕光纤耦合效率相关的量：激光模式、发散角、数值孔径、焦斑直径、精密光纤耦合器等问题进行了讨论；
The two key problems in inverse synthetic aperture radar imaging; phase compensation and small - Angle imaging are studied.
对逆合成孔径雷达成像中的相位补偿和小角度成像两个关键问题进行了讨论。
Special Angle strengthened bit design intensifying blade protection and quickly leading powder into screw groove, which reduce resistance and improve in-aperture speed.
特殊角度强化刀头设计，强化刃部保护，并将粉末快速导入螺旋沟槽，减少阻力，提高进孔速度。
Screen length, incline angle, and screen-aperture are the most important screen parameters, which directly relate to the capacity and efficiency of the screen.
筛面长度、倾角和筛孔孔径是最重要的筛面参数，与筛分机的处理能力和筛分效率有着直接的关系。
Based on ASTF the influence of such parameters as tip-sample distance, tip aperture diameter and the incident Angle of illuminating laser beam on PSTM image has been discussed.
进一步根据角谱传递函数计算了不同样品的光子扫描隧道显微镜理论图像，分析了探针与样品的间距、探针孔径大小、照明光入射角等对光子扫描隧道显微镜成像的影响。
With wide-angle images, you will need to move both Aperture and Shutter Speed readings to get a blue background that is pleasing to you.
在拍摄广角的时候，最好同时调整光圈和快门速度，达到看起来正常的蓝色背景。
VRT could clearly display full aperture of screw orbit, location of screw and angle of fixation and hence was superior to X-ray plain film and MPR.
VRT成像能清晰显示螺钉轨道全径、螺钉位置及固定角度，并优于X 线片及MPR成像。
It has the characteristics of the small volume, light weight, high aperture efficiency and low wide-angle minor lobe and so on.
它具有体积小、重量轻、口径效率高、宽角副瓣低等特点。
The projection optics is designed for a constant field angle and entrance pupil. Thus image always fills entrance aperture and view field of the test optical system.
从光学指标的确定，结构、材料的选取到最终光学性能，阐述了准直投射光学系统的设计。
The paper introduced radiation heat-transfer speciality of radiant porous body, and analyzed radiation Angle coefficient of radiant porous body with square aperture by using numerical differentiation.
介绍了辐射多孔体的辐射传热特性，采用微分法对方形孔道辐射多孔体的辐射角系数进行了数值分析。
The paper introduced radiation heat-transfer speciality of radiant porous body, and analyzed radiation Angle coefficient of radiant porous body with square aperture by using numerical differentiation.
介绍了辐射多孔体的辐射传热特性，采用微分法对方形孔道辐射多孔体的辐射角系数进行了数值分析。
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