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- Back focal distance;Backside focal length 后焦距(摄影)
- Front Vortex Back Focal Distance 前涡流中心后焦点距离
- back focal distance 后焦距
- Correct under the guiding of route, we successfully design and have trial-produced the one kind of new long large-scale camera of focal distance. 在正确路线的指引下,我们成功地设计和试制了一种新型长焦距大型照相机。
- This may avoid remedy mistake because of the actual different focal distance brings from AS function. 这样可以避免AS功能启动是由于实际的焦距不同带来的矫正错误。
- The software computes the Back focal length from focal plane position and the reference position (as well as the offset, if entered). 软件根据焦面位置和参考位置(以及偏移量,如果有输入的话)来计算后焦距。
- The key places for such manipulation are the back focal plane of the objective and the front focal plane of the substage condenser. 最关键的地方为物镜的后焦面和载物台下聚光镜的前焦面。
- Correct under the guiding of route,we successfully design and have trial-produced the one kind of new long large-scale camera of focal distance. 在正确路线的指引下,我们成功地设计和试制了一种新型长焦距大型照相机。
- Remove the eyepiece and, in its place, insert a phase telescope so that you can focus on the back focal plane of the objective. 取掉目镜后插入对中望远镜后可以看到物镜的后焦面。
- 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。
- In this paper, the focal distance formula of lens in varied shapes is obtained by using object methods to make its physical meaning more obvious. 摘要采用直观的方法得出了空气中各种形状的薄透镜的焦距公式,使其物理意义更加明显。
- From the focal distance formula of thin lens, the convergence and divergence nature of each kind of thin lens are discussed in different media. 从薄透镜的焦距公式出发;讨论了各种透镜在不同介质中的会聚与发散性质.
- Just as one sees his nose best in a mirror, removed to half the optimum focal distance, so also he best identifies his sense data by reflecting them in external objects. 正像人只有通过镜子(移至焦点距离的一半)才最能看清自己的鼻子一样,同样,他也只有借助对外部对象的观照才能最好地认清他的感觉材料。
- At the back focal plane of the objective, the blue wavelengths from each slit interfere constructively to produce the blue area of the diffracted image of each spectrum or order; similarly for the red and green areas (Figure 4(a)). 在物镜的后焦面,从各个窄缝发出的蓝色波长光产生增强干涉而产生各级的衍射图像的蓝色区域,红色波长和绿色波长也一样(图4(a))。
- It was pointed out in Section l.2 that when the specimen is being imaged to form an electron micrograph an objective aperture is inserted in the back focal plane of the objective lens. 2节中指出,当样本成像为电子显微镜形式,电子显微图在目标透镜的背面焦点平面嵌入一个目标孔。
- This kind of liquid state lens are composed of a pair of waterdrop, they expose under the high frequency sound wave travel between the vibration, changes lens' focal distance along with it. 这种液态镜头是由一对水滴组成,它们暴露于高频声波下往返振动,随之改变透镜的焦距。
- On the basis of their long photomicrographic experience,the authors introduce basic operations, choice of film, regulation of focal distance and exposure, and choice of color filter. 笔者以自己多年显微摄影工作之经验,就该技术的基本操作、胶片选择、焦距和曝光调节、滤色片选择等诸多技术要点作了介绍。
- Has 3 focal distance locking press button in the different position, to have the electronic burnt section selection switch and so on, may have the very good operationality regarding the high-end user. 在不同的位置有3个焦距锁定按钮、拥有电子焦段选择开关等,对于高端用户可以有很好的操作性。
- The British line was forced back a short distance. 英军的阵线被迫后退一段距离。
- Through calculating ultrasonic phased array probe position and choosing the detecting parameter such as beam angle, focal distance, focus size and focus length and so on to calibrate the instrument. 通过对超声探头位置的准确计算,以及对超声相控阵的声束角度、焦距位置、焦点尺寸及位置等参数的选择来进行仪器标定。