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pond aquaculture machinery
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pond aquaculture machinery
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农学
池塘养殖机械
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pond aquaculture machinery
池塘养殖机械
池塘养殖过程中用以构筑或翻整池塘、调控或改善池塘养殖环境以及提高池塘养殖生产效率所使用的各种装置的总称。
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principle of invariance of light speed
principle of investigation
principle of investment diversification
principle of knowledge evaluation
principle of least action
principle of least curvature
principle of least effort
principle of least entropy production
principle of least motion
principle of least privilege
principle of least reaction
principle of legality
principle of library management
principle of limiting absorption
principle of limiting amplitude
principle of linearization
principle of linearized stability
principle of linear superposition
principle of locality
principle of localization
principle of location
principle of massive support
principle of material benefits
principle of mathematical induction
principle of maximum
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