与"second-class lever"相近的词条

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• Second cervical vertebra
• second childhood
• second choice、second-choice
• second class、second-class
• second class grade chemical
• second-class lever
• second-class lever system in mastication
• second clypeus
• second CMC
• Second coccygeal vertebra
• second codon
• Second Coming
• second component of complement
• second contraction
• second costal cartilage
• second costal cell

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