天气预报 > 其他 > 怎么求实际距离
怎么求实际距离
更新时间: 2020-10-31 00:00:00  

求实际距离的方法:实际距离=图上距离÷比例尺。比例尺是表示图上距离比实地距离缩小的程度,也叫缩尺。比例尺是一个比,不应带计量单位。比例尺有三种表示方法:数字式,线段式,和文式。三种表示方法可以互换。根据地图的用途,所表示地区范围的大小、图幅的大小和表示内容的详略等不同情况,制图选用的比例尺有大有小。

关键词: 怎么 实际 距离

怎么求实际距离相关经验

天气预报

最新推荐

页面:/news/view-783084/ | 耗时:0.9741 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=783084 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=783084 LIMIT 0,1
select * from tbl_Articles_sphinx where id=783084 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1078737,1092321,1367489,1042516,1047643,1088892,1126784,1082237,1099713,1298654,1124845,1085072,1070480,1078294,1114686,1123094,2532730,1094133,1109983,1062134,1075652,1123377,1066160,1499314,1066384,1121356,1126134,1098963,1049046,1063283) ORDER BY field (ArticleID,1078737,1092321,1367489,1042516,1047643,1088892,1126784,1082237,1099713,1298654,1124845,1085072,1070480,1078294,1114686,1123094,2532730,1094133,1109983,1062134,1075652,1123377,1066160,1499314,1066384,1121356,1126134,1098963,1049046,1063283)