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【题目】默写题

1.请写出坡度与等高线疏密、比例尺和等高距之间的关系。

2.写出陡崖的相对高度、陡崖顶部和陡崖底部的公式。

3.今天是指:

4.东半球是指:

【答案】

1、图幅相同情况下,等高线越密集、比例尺越大、等高距越大,坡度越大。

2、陡崖高度计算方法:(x-1)d≤ΔH<(x+1)d (d为相邻两条等高线的差即等高距,X为重叠的等高线条数)。

3、今天是指新日期区,包含从0点向东到日界线的范围。

4、东半球是指从20°W向东至160°E的范围。

【解析】

试题分析:

1、坡度与等高线密集度、比例尺、等高距等都有一定关系。

2、陡崖高度计算方法:(x-1)d≤ΔH<(x+1)d (d为相邻两条等高线的差即等高距,X为重叠的等高线条数)。

3、今天是与昨天相对而言的,是一种规定。具体是指新日期区,包含从0点向东到日界线的范围。

4、东西半球以20°W、160°E为界,东半球是指从20°W向东至160°E的范围。

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