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青藏高原多年冻土区
释义
青藏高原多年冻土区
Encyclopedia
理学
中国的冻土
释
permafrost region of Qingzang Gaoyuan
青藏高原多年冻土区
世界中、低纬度地带海拔最高(平均4000米以上)、面积最大(150万平方千米)的冻土区。年均温度最低-5~-4℃,冻土厚度达一二百米;地温年变化深度由6~17米;细颗粒冻土层温度比粗颗粒土低,在高原上要差1~3℃。
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time derivative
time determination
time diagram
time difference
time difference of arrival and angle of arrival hybrid positioning
time difference water level correction
time dilatation
time dilation
time dilation effect
time dimension
time dimension, temporal dimension
time direction
time dispersion
time displacement
time displacement invariance
time displacement invariance, time translation invariance
time displacement operator
time-displacement operator
time displacement operator, time translation operator
time displacement symmetry
time displacement, time translation
time dissemination
time-distance helioseismology
time distribution
time diversity and combining
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