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- Has two converging lens system; the objective and the eyepiece. 有两个会聚镜头系统;物镜和目镜。
- The usually circular area in which the image is rendered by the lens system of an optical instrument. 视区光学仪器的透镜系统所能看到的通常是圆周的区域
- Imagine that we have some sort of Lens system which forms an image of an extended object. 设想我们有某种透镜系统，它对一个扩展物体成象。
- Compound lens or lens system designed to be free of astigmatism and able to form approximately point images. 没有散光并且能够形成近似的图像的。
- The ratio of the focal length of a lens or lens system to the effective diameter of its aperture. F值物镜或物镜系统的焦距与入射光孔直径之比
- An achromatic lens system may consists of several cemented or separated groups of orown and flint glasses. 一个消色差的透镜系统可由若干个互相贴合的或互相分离的、由冕玻璃和火石玻璃组成的组元组成。
- The lens or lens system in a microscope or other optical instrument that first receives light rays from the object and forms the image. 物镜首先从物体上接收光线并形成影像的显微镜或其它光学仪器中的透镜或透镜系统。
- Even the simple trilobite has an eye (complete with its double lens system) that's considered an optical miracle by today's standards. 按照今天的标准，即使是简单的三叶虫，它的眼睛（完美的双镜头系统）也是一个光学奇迹。
- The PMW-EX1R features a hand-held design, does not have an interchangeable lens system, and will be available in December 2009 with an MSRP of $7,790. 在PMW-EX1R功能手持设计，目前还没有更换镜头系统，并将于2009年12月与零售价的七七九零美元。
- To evaluate the application value of scanning laser angiography with a wide-field contact lens system in the diagnosis of choroidal melanoma. 评价广角激光扫描血管造影技术在脉络膜黑色素瘤诊断中的应用价值。
- The condenser is equipped with an iris diaphragm, a shutter controlled by a lever which is used to regulate the amount of light entering the lens system. 聚光镜装配有瞳孔膜，那是一个有贡杆控制的快门，用来调节进入镜头系统的光量。
- The tectonic-fluid processes are decoupled by interaction of deformation partitioning, tectonic pumping, hydrofracturing and rupture-healing in tectonic lens system. 构造透镜体系统中构造-流体作用是通过变形分解、构造泵吸、液压致裂、裂开-愈合相互有序作用而解耦的。
- In the scope of zoom lens, most of researches focus on traditional zoom lens system, which changes the effect focus by moving the lens along optical axis. 中文摘要在变焦镜头的领域中，大都著重于传统式的变焦系统，其变焦方式是让透镜沿著光轴移动而改变整体的有效焦距。
- The preceding chapter, for the most part, dealt with paraxial theory as applied to thin spherical lens systems. 前一章讨论的基本上是应用于薄球面透镜系统的傍轴理论。
- Discussed the achromatic principle of our hybrid acoustic lens system by deducing the point spread function of a point source with a bandwidth through the different imaging system. 利用菲涅耳衍射理论推导出了单频点声源经过单声透镜后的点扩展函数、有一定带宽的点声源经过单声透镜后的点扩展函数,以及有一定带宽的点声源经过我们设计的混合声透镜后的点扩展函数。
- He trudge three hour in the snow to get back home. 他在雪中跋涉三个钟点才回到家。
- High light transmission as well as brilliance, high contrast and natural color rendition the high resolution objective lens system features the multi-layer M* coating which is a MINOX development. 小巧的单筒望远镜采用了MINOX研发的多层M*镀膜镜片处理技术，提高了弱光下的反差，色彩自然锐利。
- Our family reunions are always three ring circus. 我家合家团聚的场面总是热闹非凡。
- The train arrived on the dot of three o'clock. 那辆火车三点钟准时到达。
- Her family lives three li away from her school. 她家住在离学校有三里路的地方。
