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- posterior focal distance 第二主焦距, 次焦距
- posterior principal focal distance 后主焦距, 次焦距
- 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。
- 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。
- 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。
- 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。
- 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。
- The mountains were hazy in the distance. 远处的群山笼罩在雾霭之中。
- The conclusion shows that reasonable selections of the focal distances of the main reflector may be able to obtain low RCS, keeping the high-gain under the antenna unchanged. 结果表明,在保持增益不变的情况下合理选择主反射面的焦距是能够达到降低雷达散射截面的需要的。
- It is a posterior view of the skull. 这是颅骨背视图。
- Back focal distance;Backside focal length 后焦距(摄影)
- secondary principal focal distance 第二主焦距, 次焦距
- He judged the distance to a nicety. 他判断距离很正确。
- The condition of being posterior in location or time. 在后在位置上或时间上较靠后的状况
