与"natural ventilation"相近的词条

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• natural unipolar chromosome
• natural variation
• natural vector
• natural vegetable powder
• natural vegetation
• natural ventilation
• natural versus unnatural reasoning strategy
• natural vibration
• natural viral infection
• natural visual acuity
• natural vitamin A in oil
• natural walking velocity
• natural water
• natural water cycle
• natural water source
• natural waterfall

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