这种运用光场的方法，意味着他们将永远在焦点之上（因为在照片后拍摄之后可以随意移动焦平面）。
The light-field approach means they will always be in focus (since the plane of focus can be moved at will after the photograph has been taken).
角形树木形成通道，定位成主要焦点，在这里，廊道是唯一浮现于平面的元素。
The dihedral wood that forms the access is positioned as the main focus where the access gallery is the only element that emerges from the plane.
从而给出了以平面上任意点为焦点、任意直线为准线，任意正数为离心率的圆锥曲线的直接作图方法。
Thus, we give a make-graph method of conic section on plane with arbitrary point as foci, arbitrary line as directrices and arbitrary positive number as eccentricity.
有不同的包装供大家选择，而我选择了扫描电影捆束，包括肩部支架套件，迷你型的焦点自动平面视景。
There are many different packages you can get but I got the Field Cinema bundle which includes the shoulder mount kit and the mini focus follow.
在第三章至第六章，我们研究实平面奇数次多项式微分系统无穷远点(赤道)的中心焦点判定与赤道极限环分支。
From Chapter 3 to Chapter 6, the center-focus determination and bifurcation of the equator are studied for real planar odd polynomial differential systems.
与平面波相比，高斯光束入射下的焦点处中心场强较小，但衍射效率较高。
Compared with the plane wave incidence, when the Gaussian beam is incident, the center electric magnitude is smaller, but the diffraction efficiency is higher.
与平面波相比，高斯光束入射下的焦点处中心场强较小，但衍射效率较高。
Compared with the plane wave incidence, when the Gaussian beam is incident, the center electric magnitude is smaller, but the diffraction efficiency is higher.
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