gear pitch measuring i trument的意思|示意
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齿轮节距测量仪表
gear pitch measuring i trument的网络常见释义
齿轮节距测量仪 ... 不胀钢间距测量器 invar spacer 齿轮节距测量仪 gear pitch measuring i trument; gear pitch measuring instrument 记录距测量手簿 tacheometrical record book ...