天气预报 > 其他 > 人眼看见物体的条件是什么
人眼看见物体的条件是什么
更新时间: 2020-10-13 00:00:00  

有光射入眼睛引起视觉。人眼能够看到发光的物体即光源,是因为它发出的光进入人的眼中,引起视觉。人眼能够看到不发光的物体,是因为它反射光源的光进入眼中,引起视觉。

关键词: 人眼 看见 物体 条件 什么

人眼看见物体的条件是什么相关经验

天气预报

最新推荐

页面:/news/view-129334/ | 耗时:0.6758 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=129334 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=129334 LIMIT 0,1
select * from tbl_Articles_sphinx where id=129334 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1074534,1094987,1102222,1108668,1081195,1086872,1129293,981848,2666365,1104131,1068154,1066362,1081747,1085800,1088509,1073385,1078414,1370312,1093857,1045911,1086418,1128185,1096591,1063213,1064663,1094615,1087351,1076576,1093989,1107617) ORDER BY field (ArticleID,1074534,1094987,1102222,1108668,1081195,1086872,1129293,981848,2666365,1104131,1068154,1066362,1081747,1085800,1088509,1073385,1078414,1370312,1093857,1045911,1086418,1128185,1096591,1063213,1064663,1094615,1087351,1076576,1093989,1107617)