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河套地区农业史
释义
河套地区农业史
Encyclopedia
理学
中国农业史
释
agriculture history in Hetao region
河套地区农业史
中国阴山至蒙陕长城、贺兰山至晋陕峡谷整个河湾内外的农业发展历史。
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use value
use value of forest resource
use value of resources
U.S.FDA
USFDA
U.S. Federal Aviation Administration
U.S. Food and Drug Administration
U.S. Government Publishing Office
U.S.Government Publishing Office
U-shaped
U-shaped cells
U-shaped curve
U-shaped distribution
U-shaped valley
Ushihara Kyohiko
Ushin
Ush Rebellion
USIA
U.S. Information Service
using allusions
using light in photography
using of insurance guaranty fund
using the guided positioning effect of saccharide compound
using warming and heat-clearing simultaneously
U.S.Invasion of Nicaragua
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