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soil and water conservation tillage measure
释义
soil and water conservation tillage measure
Encyclopedia
农学
水土保持耕作措施
释
soil and water conservation tillage measure
水土保持耕作措施
在水蚀和风蚀的农田中,采用改变小地形、增加植物被覆、地面覆盖和增强土壤抗蚀力等方法,达到保水、保土、保肥、改良土壤、提高产量的农业技术措施。主要用于治理坡耕地的水土流失。
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Aharonov-Aronov-Spivak effect
Aharonov-Aronov-Spivak效应
Aharonov-Bohm [conductance] oscillation
Aharonov-Bohm conductance oscillation
Aharonov-Bohm [conductance] oscillation, AB oscillation
Aharonov-Bohm conductance oscillation, AB oscillation
Aharonov Bohm effect
Aharonov-Bohm effect
Aharonov-Bohm effect, AB effect
Aharonov-Bohm flux
Aharonov-Bohm flux, AB flux
Aharonov-Bohm oscillation
Aharonov-Bohm oscillation, AB oscillation
Aharonov-Bohm效应
Aharonov Casher effect
Aharonov-Casher effect
a harrow-like implement for pulverizing soil
a hawk attacking an egret among withered lotus
A. H. Becquerel
A. H. Becquerel, 1852—1908
A. H. Bucherer
A. H. Bucherer, 1863—1927
A. H. Clliford
A. H. Clliford (1908—1992)
A. H. Compton
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