是位于镜筒底部的一块抛物面镜。
介绍了单件加工离轴抛物面镜的基本过程。
The unit processing of abaxial parabolic mirror is introduced.
汽车配件，齿轮箱配件，面镜，前桥，后桥。
Motor accessory, gear box accessory, side mirror, front axle, back axle.
方法：用间接眼底镜及三面镜检查眼底视网膜。
Methods:Indirect ophthalmoscope and three mirror contact lens were used to exam the retina.
五面镜更便宜更轻，但是成像的质量和亮度差。
This is cheaper and lighter, but generally produces a viewfinder image of lower quality and brightness.
这是面凸面镜。
五面镜不是用一整个玻璃棱镜，而是用3块镜子来达到相同的目的。
Instead of the solid block of glass of the prism in pentaprism system, here 3 simple mirrors are used to perform the same task.
本发明是一种同轴共焦旋转抛物面镜聚光器，属于平行光汇聚的技术领域。
The invention relates to a concentrator of a coaxial confocal rotating paraboloidal mirror, belonging to the technical field of parallel light convergence.
他实际上是活生生地反映出眼前发生的景像，是一块两面镜，既反射内在也反射外在。
He was indeed a living reflection of all that happened before the mirror of his eyes, a two-sided mirror, turned both out and in.
为了加大房间的空间并使它显得开阔，可以在墙壁上悬挂一面镜子，或在室内加一块地镜。
To add space to the room and open it up, hang a mirror on the wall or add a floor mirror in the room.
一方面，有微小的微生物，只有在显微镜下才能看到它们。
On the one hand, there are tiny microbes and they can only be seen through a microscope.
我使用头灯，尾灯，反光镜，两面后视镜，和一个额外用在拖车上的尾灯。
I use a headlight, taillight, reflectors, two mirrors, and an additional taillight for the trailer.
但另一方面，镜片震动相对于曝光时间短得可以忽略不计，因此，反光镜锁定对夜间摄影并非必要。
On the other hand, mirror shake is negligible for exposures much longer than this; therefore MLU is not critical for most night photography.
通过扩大DOTS的人口覆盖面以及增加痰涂镜检的使用，欧洲区域可达到目标。
The European Region could reach the target by increasing both DOTS population coverage and the use of smear microscopy.
这个新的巨型阵列被视为世界上最快的射电天文望远镜，它的虚拟碟面跨越整了个西欧。
The new giant array is being called the fastest radio telescope in the world with a virtual dish that spans Western Europe.
意思是考虑你的灯跟后视镜。我使用头灯，尾灯，反光镜，两面后视镜，和一个额外用在拖车上的尾灯。
This means lights and mirrors. I use a headlight, taillight, reflectors, two mirrors, and an additional taillight for the trailer.
月球宇宙无线电波阵列(LARC)由数百个小型射电天文望远镜构成，它们将在月球暗面覆盖两平方公里。
The Lunar Array for Radio Cosmology (LARC) would involve hundreds of small radio telescopes covering two square kilometers on the side of the moon that never faces Earth.
由于无线电波比可见光波长百万倍，10米宽射电望远镜上的碟面只能接收月亮大小的星空图。
Because radio waves are millions of times longer than visible light, a collecting dish of a 10-meter radio telescope might only resolve an area of sky the size of the moon.
用一面放大镜可以凝聚太阳光，而点燃和纸张。
With a magnifying glass, the rays of the sun can be focused to set grass or paper on fire.
这幅图像是哈勃太空望远镜2001年7月拍摄的，它揭示了霍格星系的一些难以被解释的细节，另一方面则可能会帮助我们更好的理解它。
This image, taken by the Hubble Space Telescope in July 2001, reveals unprecedented details of Hoag's Object and may yield a better understanding.
一幅画中是一片平静的湖泊，这湖就象是一面完美的平静之镜，巍峨壮丽的山峰环绕着它。蓝天上白云飘。
One picture was of a calm lake. The lake was a perfect mirror for peaceful towering mountains all around it. Overhead was a blue sky with white clouds.
而我们只有两个100 0瓦的“太阳枪”(手持电池灯)，一面刚好拿在手里的化妆镜！
We only have two 1000-watt 'sun-guns' (hand-held battery lamps) and a make-up mirror that barely fills my hand!
对一个非球面反射镜进行了实测并对测量结果进行插值运算，进而拟合出零件面形的曲线方程。
An aspherical reflector is tested and testing data are processed by the interpolation calculation, then the curve equation of the component surface shape is fitted.
空间配有少量的装饰，用简单的金属衣架展示衣服。一面大的穿衣镜靠一侧的墙壁支撑着。
The space is fitted with a minimal amount of decor, with clothing displayed on simple metal racks. A large mirror is propped up against one wall.
实验结果表明，该系统可有效改变薄膜反射镜的面形。
Experimental results show that the system is feasible for changing the surface profiles of a membrane mirror.
叙述铜反射镜的加工过程，提出“两面同时加工，自然释放应力”的加工方法。
The machining process of copper reflector is described. A processing method of "simultaneous processing of two sides and natural stress releasing" is put forth.
妈妈给你买一面穿衣镜。
妈妈给你买一面穿衣镜。
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