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ecological recovery of farmland
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ecological recovery of farmland
Encyclopedia
理学
农田生态恢复
释
ecological recovery of farmland
农田生态恢复
对耕地质量受损的农田用生态友好方法加以修复和改善,使农田生产力得到恢复的过程。
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positive direction
positive displacement compressor
positive displacement flowmeter
positive displacement motor drill
positive displacement pump
positive displacement sensor
positive distinctiveness
positive distribution
positive divisor
positive divisorial ideal
positive domain
positive drawing
positive drive lift
positive dromotropic action
positive edge
positive effect of organizational communication
positive eigenvalue
positive eigenvalued matrix
positive eigenvector
positive electron
positive element
positive emitter-coupled logic
positive emitter-coupled logic, PECL
positive endomorphism
positive energy
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