能够产生放大图像的单个凸透镜。
他用一面凸透镜把阳光聚焦在纸上。
他用一面凸透镜把阳光聚焦在纸上。
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.
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.
配戴低度凸透镜可降低小学生近视的发生率。
Wearing lower degree convex lens can reduce incidence rate of myopia in primary school students.
凸透镜中心部分比周围要厚，它使光线会聚。
A convex lens is thicker at its center than its periphery. It causes rays to converge.
目的探讨低度凸透镜预防小学生视近的效果。
Objective To investigate the effect of lower degree convex lens on preventing myopia of primary school students.
凸透镜用于聚集光线。
凸透镜用于聚集光线。
结论配戴低度凸透镜可降低小学生近视的发生率。
Conclusion Wearing lower degree convex lens can reduce incidence rate of myopia in primary school students.
介绍一种测量平行光管内凸透镜焦距的测量方法。
In this paper, a measuring method of convex lens foci in collimator is given.
正象双凸透镜可以放大那样，双凹透镜也可以缩小。
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。
Just AS a double convex lens enlarges, so a double concave lens reduces.
本文给出两种能使平行光严格聚焦于一点的凸透镜。
Two kinds of convex lens which make parallel light rays converge to the focal point are given.
本文详细地介绍了如何运用视差现象研究凸透镜的成象规律。
This paper, in detail, introduced how to study the rule of image construction for biconvex lens by using the method of vision difference.
本发明的装置由反应器，搅拌器、凸透镜和紫外光源共同构成。
The apparatus is comprising of reactor, mixer, convex glass and ultraviolet light source.
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.
只有在近轴光线条件下，平行光通过凸透镜才可近似聚焦于一点。
The parallel light rays of the prnicipal axis that approach a convex lens can converge to the focal point.
复合显微镜包括两个短焦距凸透镜，即位于镜筒两端的物镜和目镜。
The compound microscope consists of two convex lenses with short focal length, the objective and eyepiece lenses, fitted at opposite ends of a tube.
她们当然是看到了。我觉到她们的眼睛像凸透镜那样对准了我烧灼的皮肤。
Of course they did; for I felt their eyes directed like burning-glasses against my scorched skin.
在单色光、小物条件下，球差是引起薄凸透镜焦距的测量误差的主要因素。
Under conditions of monochromatic light and a small object, the spherical aberration was the main factor which led to measuring error of focus of thin convex lens.
利用平-凸透镜准直器作扩束耦合光学系统，采用低频斩光器实现光调制。
This sensor featuring plane-convex lens collimator for expanding beam and coupling, and a low frequency for light pulse modulation is introduced.
这些水珠像微型凸透镜一样，把阳光聚焦到一点，这一点随后就变干枯了。
Those drops act like mini magnifying glasses, focusing the sunbeams on an area that will subsequently fry.
这件事情像一面凸透镜，聚焦了人性的美丑，也凸显了“从心选择”的强大力量。
Convex side of this matter, like, focused beauty and ugliness of human nature, but also highlighted the "Select from the heart," a powerful force.
充液凸透镜，是用透明液体充进凸型空心透明固体外壳中而形成的一种光学凸透镜。
The utility model discloses a liquid-filled convex lens which is an optical convex lens formed by transparent liquid filled in a convex hollow transparent solid outer shell.
普通物理实验中，牛顿环干涉实验只考虑在凸透镜与平面玻璃之间形成空气薄膜下的干涉现象。
In interference experiments with Newton's ring, considered only is the interference of the air film formed between the convex lens and the plain glass.
由于利用凸透镜对太阳光进行聚焦，因此晶硅电池的用量大大减少，同时光能转化率也有所提高。
By using the convex lens to focus the solar energy, the use amount of the crystal silicon batteries is largely reduced and the energy conversion rate is improved.
由于利用凸透镜对太阳光进行聚焦，因此晶硅电池的用量大大减少，同时光能转化率也有所提高。
By using the convex lens to focus the solar energy, the use amount of the crystal silicon batteries is largely reduced and the energy conversion rate is improved.
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