科研人员根据已有数据，通过哈勃太空望远镜更近距离的观察这个黑洞。发现M87星系的特大质量黑洞已经移出了中心位置。
Researchers used data from the Hubble Space Telescope to look more closely at the black hole, and found that the supermassive black hole in the M87 galaxy is, in fact, displaced from the center.
用武器瞄准时的缩放现在也有不同，只是获得一个近距离视角再通过红点或者准星瞄准的方式被取代，而是你通过瞄准镜观察，并移动一个红色目标圈。
Zooming in with your weapon is different now too. Instead of just getting a closer view and aiming via a red dot or crosshair, now you're looking through a scope and moving a red targeting circle.
目的：应用改变近用老视镜的光学中心所产生的三棱镜效应，消除老视患者近距离阅读和工作的肌性视疲劳。
AIM: To evaluate the therapeutic effects of using prism effect in the correction of muscular asthenopia by changing optical center of presbyopic glasses.
用一个普通的显微镜，你应该能够近距离地看到细菌。
Even with an ordinary microscope, you must look closely to see bacteria.
本发明提供了一种全向图像反射镜，全向图像反射镜是一种以较小的镜面映射出较大视野的图像反射镜，并获取近距离内无畸变的图像信息。
The omnidirectional image reflector is one kind of image reflector with relatively small mirror but relatively large view field and capable of obtaining no-deformation near distance image.
此镜及以后的版本可对焦到28英寸，这是继DR之后50mm取景器对焦的最近距离。
This and later versions focused to 28, the closest focusing RF coupled 50 after the DR.
此镜及以后的版本可对焦到28英寸，这是继DR之后50mm取景器对焦的最近距离。
This and later versions focused to 28, the closest focusing RF coupled 50 after the DR.
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