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sowing
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根据作物种类、品种特性、种植制度、栽培方式及作物对环境条件的要求,选择适宜的时期和方式,采用手工或机具将适量的种子播到土层表面或一定深度的土层内的农事作业。
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mass ratio
mass renormalization
mass resolution
mass scattering
mass scattering coefficient
mass segregation
mass segregation of galaxy cluster
mass selection
mass selectionof aquatic species
mass sensitive detector
mass sensitivity
mass separator
mass service system
mass service system with delay
mass service system with rejection
mass shell
mass-shell condition
mass-shell subtraction scheme
mass social theory
mass society
mass society theory
mass song
mass spectra
mass spectrograph
mass spectrograph, mass spectrometer
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