与"natural convection"相近的词条

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• natural conservation
• natural constriction
• natural contrast
• natural control
• natural control method
• natural convection
• natural convection air cooled condenser
• natural conversion into positive
• natural cooling
• natural cow pox virus
• natural cross pollination
• natural crossing
• natural crossing posture
• natural cure
• natural cytotoxic cell
• natural cytotoxic(cells)

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