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气吹式排种器
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气吹式排种器
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气吹式排种器
释
pneumatic seed-metering device
气吹式排种器
以窝眼轮式排种器为基础,改进清种装置,以气流为清种手段的排种器(见图)。
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media dependency syndrome
Media Dependency Theory
media differentiation strategy
media distribution channel
media distributor
media diversity strategy
media ecology
media economics
media economy
media education
media educational technology
media effects
media employees
media entry permission
media environment society
media equation theory
media ethic
mediaeval Islamic law
media event
media externality
media field
media financial budget
media financial management
media financial report
media financial subsidy
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