【它山之石】山的定义

【它山之石】山的定义（外文: mountain）

【維基百科定义】
山離地面高度通常在100米以上，包括低山、中山與高山，是否被稱作山取決於當地人。
【Oxford English Dictionary】：a mountain is defined as "a natural
elevation of the earth surface rising more or less abruptly from the
surrounding level and attaining an altitude which, relatively to the
adjacent elevation, is impressive or notable."[1]。
In（the United Kingdom and the Irish Republic）：a mountain is usually
defined as any summit at least 2,000 feet (or 610 metres)
high,[3][4][5][6][7] whilst the official United Kingdom government's
definition of a mountain, for the purposes of access, is a summit of
600 metres or higher.[8]。
The 【US】defined a mountain as being 1,000 feet (300 m) or taller.

【百度百科定义】
海拔高度500m以上，起伏程度相对起伏大于200m、坡度比较陡，"低山"指主峰相对高度在150米至350米。


原文网址：
http://baike.baidu.com/subview/35189/12265376.htm?fr=aladdin#2
http://en.wikipedia.org/wiki/Mountain

【它山之石】
这是笔者最新的创作计划。
;）