concave lens
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释义
凹透镜；负透镜；
英英释义
concave lens
n.a lens such that a parallel beam of light passing through it is caused to diverge or spread out
同义词：diverging lens
双语例句
Just as a double convex lens enlarges, so a double concave lens reduces.
正象双凸透镜可以放大那样，双凹透镜也可以缩小。
权威例句
concave lensconcave lens
Effects of concave lens on eyes of guinea pig
Negative refraction and plano-concave lens focusing in one-dimensional photonic crystals
Multi-functional, optofluidic, in-plane, bi-concave lens: tuning light beam from focused to divergent
Lithographic fabrication of large diffractive optical elements on a concave lens surface
Fabrication of large diffractive optical elements in thick film on a concave lens surface.
Strongly frequency dependent focusing efficiency of a concave lens based on two-dimensional photonic crystals
Beamforming by Left-Handed Extraordinary Transmission Metamaterial Bi- and Plano-Concave Lens at Millimeter-Waves
Strong focusing properties and far-field focus in the two-dimensional photonic-crystal-based concave lens
1. Water surges from the cells on the inside of the leaf to those on the outside, causing the leaf to rapidly flip in shape from convex to concave, like a soft contact lens.
水从叶子内部的细胞涌向外面的细胞，导致叶子迅速地从凸向凹翻转，就像一片柔软的隐形眼镜。
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2. Just as a double convex lens enlarges so a double concave lens reduces.
正象双凸透镜可以放大那样，双凹透镜也可以缩小。
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3. Objective: to observe the effect of concave and convex on growing and the refractive developing of guinea pig eyes and to establish lens-induced animal model of myopia or hyperopia.
目的：观察凹透镜和凸透镜对豚鼠眼球生长和屈光变化的影响，建立透镜诱导型屈光不正动物模型。
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4. This article introduces a method of measuring the radial of a concave lens with laser, grating and vemier caliper.
介绍了一种利用激光、光栅、游标卡尺测量凹透镜球面半径的方法。
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5. Firstly, a telescope system is made up with a concave lens and a long-focus convex lens, by which the angle of the parallel beam from the collimator can be change.
该方法借助一个焦距较长的凸透镜与被测凹透镜组成无焦系统，可以使准直管出射光束的张角发生改变；
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6. An approach is proposed, which emphasizes the importance of concave lens which can scatter the laser and make it an ideal signal source to be captured by the CCD lens.
本文提出以凹透镜散射法将待测光源转化为镜头可以直接捕捉的理想光源，从而大大提高了点的测量精度，充分利用了激光作为信号源所体现的优势。
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7. We fabricated a large computer-generated holography on a concave lens surface to test the convex secondary mirrors surface.
在凹透镜表面上制作出了用于凸非球面检测的曲面全息图。
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8. This paper describes a diverging fibre that is analogous to a concave lens.
本文讨论一种发散型光学纤维，它类似于凹透镜。
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9. Just AS a double convex lens enlarges, so a double concave lens reduces.
正象双凸透镜可以放大那样，双凹透镜也可以缩小。
youdao
10. The observation lens is the single-tube visual lens, eyeglass is made of a concave lens, and the inner part of a lens tube is provided with a visual distance increasing device.
所述的观测镜是单筒目视镜，目镜用凹透镜制成，镜筒内部设有视距增长装置。
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11. First, the team placed two concave mirrors 1 micrometre apart, and filled the lens-shaped cavity between them with a red liquid dye.
首先，实验小组放置了两面相距一微米的凹镜并向其间透镜状的中空部分填充一种红色液体染料。
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12. Among the reshaping systems converting a Gaussian beam to a flattop beam, the system composed of a plane-concave and a plane-convex lens, is a relatively simple structure.
在将高斯光束整形为平顶光束的整形系统中，由两个非球面镜组成的系统是比较简单的结构形式，该系统由平凹镜和平凸镜组成。
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13. The invention provides a method with a concave lens focus as a welding heat source and a welding device thereof.
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。
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14. A concave lens causes rays to diverge as though they are coming from a focal point.
发散透镜使光线分开，就好象从焦点上发出来的那样。
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15. Methods Hypermetropia and myopia were induced by playing concave and convex lens in front of eyes of 32 subjects.
方法在正常眼前放置正、负球镜，人工诱导单纯性远视、近视性屈光参差。
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16. Methods Hypermetropia and myopia were induced by playing concave and convex lens in front of eyes of 32 subjects.
方法在正常眼前放置正、负球镜，人工诱导单纯性远视、近视性屈光参差。
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17. a concave lens [mirror]
凹透镜 [凹面镜]
-- 来源 -- 英汉 - 辞典例句
18. Just as a double convex lens enlarges, so a double concave lens reduces.
正象双凸透镜可以放大那样，双凹透镜也可以缩
-- 来源 -- 英汉 - 短句参考
19. Some are flared—that is, thicker at the rim than in the center, like a concave lens.
有些呈喇叭形──即边缘较中心厚，类似凹透镜。
-- 来源 -- 网友提供
20. convex concave lens
凸凹透镜
-- 来源 -- 英汉 - 翻译参考[网络]
21. double concave lens
双凹透镜
-- 来源 -- 英汉 - 翻译参考[网络]
22. plano concave lens
球平面凹透镜
-- 来源 -- 英汉 - 翻译参考[网络]
23. concave lens
凹透镜
-- 来源 -- 英汉 - 短句参考
24. A concave lens causes rays to diverge as though they are coming from a focal point.
发散透镜使光线分开,就好象从焦点上发出来的那样。
-- 来源 -- 英汉 - 翻译样例 - 自然
25. diverging concave-convex lens
散光凹凸镜
-- 来源 -- 英汉 - 翻译参考[网络]
26. Methods Hypermetropia and myopia were induced by playing concave and convex lens in front of eyes of
方法 在正常眼前放置正、负球镜,人工诱导单纯性远视、近视性屈光参差。
-- 来源 -- 网友提供
concave lens
