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When an object is far away or cannot reflect light signal, to cast an auxiliary energy signal to the imaging object will be impractical and unhelpful, such as the imaging of remote stars.

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[ Last edited by himountain on 2013-8-27 at 22:56 ]

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himountain: ½ð±Ò+3, ·­ÒëEPI+1, ¡ïÓаïÖú 2013-08-28 09:50:01
It's impratical and useless to cast an auxiliary energy signal to the imaging object when the object is far away or unable to reflect light signals, such as remote stars.
Ps: such as ÔÚÕâÀï²»ÊÇÒýµ¼´Ó¾ä£¬ÆäºóÒ²²»ÄܽӴӾ䣬ֻÊÇ×÷Ϊһ¸ö½é´Ê¶ÌÓï¡£
3Â¥2013-08-28 07:58:23
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mac194

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himountain: ½ð±Ò+1 2013-08-28 18:09:50
Poor image quality effectively precludes the use of auxiliary energy signals on targets too opaque or too distant to reflect enough light.
  ("effectivey precludes" Ç¿µ÷²¢·Ç¾ø²»¿ÉÐÐ)
  ("target" ±íʾҲ¿¼Âǵ½ÐÇÐÇÖ®ÍâµÄÄ¿±ê)

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Auxiliary energy signals won't work well when the target (star) is either too opaque or too distant to reflect enough light.
  "(star)" = "a star, for example,"  = "e.g., a star"
  "(star)" = ¼ò½à¾ÙÀý·½·¨,(ÄÚÐÐÈ˼ä)ÇáÇáÌáÐÑ
4Â¥2013-08-28 11:50:29
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himountain

Ìú³æ (СÓÐÃûÆø)

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5Â¥2013-08-28 18:10:07
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mlizhiguo

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himountain: ½ð±Ò+1, ллÄã 2013-08-28 23:31:49
When the object can not be far away or reflected light signal light projected on the object in the imaging signal unrealistic no use , such as the distant stars imaged.
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6Â¥2013-08-28 20:28:16
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himountain

Ìú³æ (СÓÐÃûÆø)

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7Â¥2013-08-28 23:33:37
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mlizhiguo

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6Â¥: Originally posted by mlizhiguo at 2013-08-28 20:28:16
When the object can not be far away or reflected light signal light projected on the object in the imaging signal unrealistic no use , such as the distant stars imaged.

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