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草场退化
释义
草场退化
Encyclopedia
理学
草场退化
释
grassland degradation
草场退化
优良牧草种类减少,各类牧草质量变劣,单位面积产草量下降等现象。又称草场植被衰退。
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bound volume
Bound Volume of Spring and Autumn Annals and Zuo's Commentary, block-printed edition by Family Yue's private school in Jingxi County, Yuan Dynasty
bound vortex
bound water
bound wave
Bounseun Songmany
Bouquet
bouquet
bouquet graph
Bour
Bourbaki
Bourbaki filter
Bourbaki group
Bourdin
Bourdon
Bourdon pressure gauge
Bourdon pressure vacuum gauge
Bourdon tube
Bourdon tube manometer
Bourdon tube pressure gauge
Bourgain
Bourgain,Jean
bourgeois journalism
Bourgeois Revolution in Netherlands
Bourgeois Revolution in Portugal
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