The size of the focal object in the scene is important.
一个场景的中心物体的尺寸是很重要的。
There is a simple rule that you can use to ensure you get this right: the focal object should fill about 70% of the space on the canvas (Fig. 30).
你可以用一个简单的规则来确保你得到正确的结果：中心物体应该占画布空间的大约百分之七十。
If the objective lens is closer to the compact disk than the focal length of the object lens then the cylindrical lens creates an elliptical image on the photodetector array.
如果物镜与光盘之间的距离短于物镜的焦距，柱面透镜就会使在光电探测器阵列上的成像变成椭圆影像。
If the objective lens is closer to the compact disk than the focal length of the object lens, then the cylindrical lens creates an elliptical image on the photodetector array.
如果物镜与光盘之间的距离短于物镜的焦距，柱面透镜就会使在光电探测器阵列上的成像变成椭圆影像。
A few fall because single tourist, sweethearts tourist takes a picture no-go, perhaps need group photo to wait, make their focal point " take care of " object.
一些落单的游客、情侣游客因为拍照不方便，或者是需要合影等，成为他们重点“照顾”的对象。
If the objective lens is further away from the compact disk than the focal length of the object lens then the cylindrical lens again creates an elliptical image on the photodetector array.
如果物镜与光盘之间的距离长于物镜的焦距，柱面透镜也会使在光电探测器阵列上的成像变成椭圆影像。
Based on distributed object technology, makes a focal research on the characters of distributed component and its implementation technologies.
以分布对象技术为基础，重点研究了分布构件技术的特征和实现机制。
You need a focal point - like when a photographer chooses the central subject of a picture, the primary object on which all eyes focus.
你需要重点式选择时的中心主题摄影图片、主要对象是所有目光的焦点。
Once you choose a lens whose focal length is closest to the focal length required by your imaging system, you need to adjust the working distance to get object under inspection in focus.
一旦你选择一个镜头其焦距是最接近于你成像系统所需之焦距，你需要调较工作距离去获取观察目标物的焦点。
The position of the image and the amplitude variation in the optical field are associated with the focus and the distance from the object to the front focal plane of the lens system.
象的空间位置和光场振幅的变化与透镜系统的焦距以及物体距焦平面的位置有关。
Starting from the ray path equation, object-image relationships are found and used to determine the equivalent focal length and the principal planes of tapered GRIN fiber.
本文从光线轨迹方程出发，推导了锥形梯度折射率纤维的物像关系式，并得出了它的等效焦距和主平面位置。
The detect ability of space object visible camera is related to the target signals collection capabilities, camera background noise and focal plane array assembly noise.
空间目标可见光相机的探测能力主要与相机自身收集目标信号的能力、相机本身的背景噪声以及探测器组件的噪声水平有关。
Measuring the focal lengths of thin lens by means of object distance and image distance is a commonly utilized method in geometric optics.
利用物距、像距法测量薄透镜的焦度是几何光学中最常用的方法。
This text teach edition with Su "high school Chinese (compulsory)" textbook as research object, divide into three parts, among them two, three parts are focal points.
本文以苏教版《高中语文(必修)》教科书为研究对象，分三个部分进行阐述，其中二、三部分是重点。
An object that serves as a focal point of attention and admiration.
物理学中的一个引注目的部份通称现代物理学。
Said proximity corresponds to a distance (relative position) between the target object (2) and the reference object (6, 8) wherein the reference object is located substantially at the focal plane.
所述接近程度对应于目标物体(2)与参考物体(6、8)之间的距离(相对位置)，其中，参考物体基本位于焦平面上。
The invention discloses a telescopic mechanism for mobile phone lens, which is object to resolve the defect that the prior mobile phone cannot use the lens telescoping to regulate the focal distance.
本发明公开了一种用于手机镜头的伸缩机构，旨在解决现有的手机不能通过镜头的伸缩来调节焦距之缺陷。
The invention discloses a telescopic mechanism for mobile phone lens, which is object to resolve the defect that the prior mobile phone cannot use the lens telescoping to regulate the focal distance.
本发明公开了一种用于手机镜头的伸缩机构，旨在解决现有的手机不能通过镜头的伸缩来调节焦距之缺陷。
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