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8Â¥2013-08-29 18:38:11
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2Â¥2013-08-27 23:45:40
phu_grassman
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himountain: ½ð±Ò+3, ·ÒëEPI+1, ¡ïÓаïÖú 2013-08-28 09:50:01
himountain: ½ð±Ò+3, ·ÒëEPI+1, ¡ïÓаïÖú 2013-08-28 09:50:01
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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
mac194
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himountain: ½ð±Ò+1 2013-08-28 18:09:50
himountain: ½ð±Ò+1 2013-08-28 18:09:50
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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) »ò 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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