G5系列提供额外的Z轴的焦点透镜元件的调整，以补偿不同高压光学厚度。
The G5 Series provides additional Z-Axis adjustment of the focus lens cell to compensate for varying High-Pressure Optic Thickness.
就是从透镜(或者主反射镜)到焦点的距离，通常单位是毫米(mm)。
This is the distance (usually in mm.) from the lens (or primary mirror) to the point where the telescope is in focus (focal point).
我在故事中谈到开普勒，不是因为他解释了星球运行规律，而是因为他解释了光如何在透镜中发生折射。正是他首创了focus(焦点)这个词。
He comes into my little story here because it was he, in explaining not how planetary motion worked but how light bent through lenses, it was Kepler who coined the term focus.
首先我们需要找到透镜的焦点。
他调整显微镜的透镜以定焦点。
眼镜都有一个光学中心，也就是说通过透镜的焦点看事物是最清晰的。
Glasses have what's called an optical center, which means that objects appear clearest when viewed through the center of the lenses.
会聚透镜使光线会聚于一点，即焦点。
A convex lens causes rays to converge on a single point, the focal point.
散光有折射缺陷的透镜或其它光学系统，阻碍光线汇聚于一个焦点，形成一个模糊或不完全的图象。
A refractive defect of a lens or other optical system that prevents light rays from converging at a single point resulting in a blurred or imperfect image.
当波带数足够大时，可以使透射空间只有一个向透镜方向迁移的焦点。
When the number of zones is sufficiently large, only one focus to shift to the lens can be obtained in the transmission space.
小说技术，譬如鱼眼睛透镜使用获得360程度视野没有焦点调整需要，最近被侦查和被证明的非常有用在流动机器人。
Novel techniques, such as a fish-eye lens used to obtain a 360-degree field of view without the need of focus adjustment, have recently been investigated and proved very useful in mobile robots.
列阵透镜由多个列阵元拼接而成，用以改善主透镜焦点附近能量分布的均匀性。
Lens array consists of many array units, which can improve energy distribution uniformity around the focus of main lens.
从理论上研究部分相干光被一环形透镜聚焦，在焦点附近的轴上点的光强分布。
The on-axis intensity distribution was investigated in the focal region of partially coherent light focused by an annular lens.
他用一面凸透镜把阳光在纸上聚成焦点。
He focused the sun's ray on a piece of paper with a burning-glass.
被检测的热释电红外信号经过滤光镜片和摆动的凸透镜聚焦后，其红外光焦点同样也进行微幅摆动。
The detected pyroelectric infrared signal passes through an optical filter and is focused by the swinging convex lens and the infrared focus is also swinging slightly.
发散透镜使光线分开，就好象从焦点上发出来的那样。
A concave lens causes rays to diverge as though they are coming from a focal point.
会聚透镜使光线会聚于一点，即焦点。
因而，复合透镜有两个焦点。
同时劲科科技可以根据客户要求制作多焦点和负焦距透镜，也可根据客户需求进行加工、镀膜各类透镜，下面是我们对各类透镜的生产要求。
Meanwhile, Jinke Technology can produce multi-focus and negative focus lens and can provide processing and coating on various lens according to the customers' requirements.
采用五点差分法计算轴对称静电透镜子午面上电位分布，再从普遍轨迹方程求得的电子轨迹出发得到透镜焦点和球差。
The five points difference method is used to calculate the voltage distribution on the meridian surface of axial-symmetrical electrostatic lens.
首先，利用菲涅耳衍射理论，分析了无衍射成像系统中点光源在透镜焦点及焦点前后所产生的无衍射光斑形式。
First, based on the theory of Fresnel diffraction, the diffraction patterns are analyzed when the point source at the front focus or it's nearby of the lens.
本发明提供一种以凸透镜焦点为焊接热源的方法及其焊接装置。
The invention provides a method with a concave lens focus as a welding heat source and a welding device thereof.
他用一面凸透镜把阳光在纸上集成焦点。
He focused the sun's ray on a piece of paper with a burning-glass.
他用一面凸透镜把阳光在纸上集成焦点。
He focused the sun's ray on a piece of paper with a burning-glass.
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