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zhong guo di li yi nan jie xi
Author(s): 
Pages: 35-36
Year: Issue:  6
Journal: Teaching Reference of Middle School Geography

Keyword:  比例尺放大等高线地形图大比例尺地图比例尺分母小比例尺中比例尺中国地理大小比值;
Abstract: <正> 1.怎样区别比例尺的大小? 解析:比例尺的大小通常分三类:比例尺大于1:200000的叫大比例尺,比例尺小于1:1000000的叫小比例尺,(?)于1:200000和1:1000000之间的叫中比例尺。在区别比例尺大小的过程中,往往会发生一种误解,认为比例尺的分母越大,比例尺就越大,分母越小,比例尺就越小。其实正好相反,地图比例尺的分母越大,比例尺就越小,分母越小,比例尺就越大。因为比例尺的大小主要看比值(商)的大小。比例尺的分子是1,分母越大,比值就越小,分母越小,比值就越大。如1/10000=0.0001,1/500=0.002,前者比例尺小,
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