... 变异；偏差；地磁差 variation 变域 variation area 成分变化图（火成岩的） variation diagram (of igneous rocks) ...
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backwater variation area 回水变动区
abnormal magnetic variation area 异常磁区
area of abnormal variation 异常磁区
variation of dullness area 浊音区的变化
characteristic of effective area variation 有效面积变化特性
area variation 面积变化
runoff area variation 产流面积变化
area variation regulation 区域变化规律
It is an important problem to find out the variation area factors of the postal service cost of various province (city) in the postal management and economy.
如何描述各省市区局各类邮政业务成本随地区因素变化的规律，是邮政经济和管理中一个十分重要的基础性问题。
There is huge variation in how people are affected by loud sound, however, and this is an area where a number of researchers are conducting studies.
这巨大的变化体现了噪音对人的影响有多大，然而，同时这是一个许多研究者正在努力的方向。
However, due to a considerable variation in land area, 1 population density and climatic, geological and topographical conditions, the extent of forest cover differs greatly among the island states.
然而，由于各岛屿国家的陆地面积、1人口密度、气候、地理地形条件等有很大差异，它们的森林覆盖程度也有很大差别。
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