主后视镜
mirror───n.镜子；真实的写照；榜样；vt.反射；反映
hand mirror───n.手镜
main───adj.主要的，最大的，最重要的；n.(Main)（美）梅因（人名）；n.（输送水、煤气等的）总管道，主管道；(themains)（水、电等的）供应，供应系统；电源插座；海洋，公海；主帆（mailsail的简称）；（掷骰子游戏中）叫数；斗鸡比赛
main scene───主要景点；主场景；主体现场
main objectives───主要目标
beveled mirror───斜面镜
magic mirror───魔镜；半透玫；幻境；幻镜，哈哈镜，魔镜
cosmetic mirror───化妆镜
dream mirror───梦幻镜
The gadget is made up of 7 individual mirrored panels with one main mirror fixed to a wall and the others attached to 2 extendable arms on either side.───这种镜子由7个镶镜的板组成，其中，主镜固定在墙上，其它镜则连在主镜两侧，成为镜翼，并可折叠在一起。
The pictures it sent us were very disappointing because its main mirror was faulty!───它传送给我们的图像很令人失望，因为它的主要镜子有误差。
The picture it sent us were very disappointing because its main mirror was faulty!───它传送给我们的图像令人很失望，因为它的主要镜子有误差。
Newton after many abraded aspherical lenses are failed, decided to adopt a spherical reflector as the main mirror.───牛顿经过多次磨制非球面的透镜均告失败后，决定采用球面反射镜作为主镜。
As long as the pointing error is no more than 1 or 2 percent of the main mirror's diameter, it makes no visible difference.───只要误差在主镜直径的百分之一或二以内，目视是觉察不到的。
Right from the start there was trouble with the Hubble. The pictures it sent us were very disappointing because its main mirror was faulty!───它传送给我们的图像很令人失望，因为它的主要镜子有误差。
The pictures it sent us were very disappointing because its main mirror was faulty!───它传递给我们的图象很令人失望，因为它的主要镜子有误差。
Dynamic Modeling of Deployable Large-aperture Main Mirror of Space Telescopes───空间大口径光学望远镜可展开主镜动力学建模研究