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secondary mirror of telescope 望远镜副镜
Under this condition, the stray light of a Cassegrain telescope comes from diffuse reflection of telescope tube wall, directly reflected light by a horseshoe mirror, diffuse reflection light by secondary mirror mount and is symmetrically distributed. 在这种条件下,卡塞格伦望远镜系统杂散光成对称分布,主要来源于望远镜筒壁的漫反射光、马蹄镜的直接反射光和次镜支架的漫反射光。
Literature is a mirror of its time. 文学是时代的镜子。
His novel is a mirror of the times. 他的小说是当代的真实写照。
She is the very mirror of virtue. 她是贞洁的典范。
Mirror 4 is just a flat mirror like Newtonian telescope's secondary mirror, to give convenience for eyes. 镜4只是一块平面镜,就象牛顿式望远镜的副镜一样,方便观测。
A reflecting telescope that has a paraboloidal primary mirror and a hyperboloidal secondary mirror; light is brought to a focus through an aperture in the center of the primary mirror. 具有抛物面主镜和双曲面次镜的一种折射式望远镜；光线被集中到主镜中心的孔径。
The press is a mirror of public opinion. 报刊是反映公共舆论的一面镜子。
Sweep the crystal mirror of the floods. 扫过清如明鉴的一泓浩水。
The newspapers are a good mirror of the times. 报纸是准确反映时代的一面镜子。
They took off the unsafe mirror of the bathroom. 他们把浴室里那面不安全的镜子摘掉了。
Almost any type of telescope will do (reflector or refractor). 几乎所有类型的望远镜都可以（反射或折射等）。
Dickens' novels are a mirror of his times. 狄更斯的小说是他那个时代的写照。
The face is the mirror of the soul. 脸是反映灵魂的镜子。
Step 1: Center the secondary mirror on the axis of the focuser drawtube. 把副镜中央置于调焦伸缩管的中轴。
Fashion is a mirror of the time. 潮流是反映时代的镜子。
Select a location for a mirror of the volume. 为卷的镜像选择一个位置。
She cleared the bathroom mirror of steam. 她擦去了浴室里镜子上的水气。
Your conversation is the mirror of your thoughts. 言为心声。
Gender difference is a mirror of Japanese society. 性别用语的差异是日本社会的一面镜子。