单项选择题
A.转速快些，进给量大些 B.转速慢些，进给量小些 C.转速快些，进给量小些 D.转速慢些，进给量大些
A.6 B.5 C.7 D.9
A.面对轴身 B.面对轴端 C.背对轴端
A.斜齿传动 B.带传动 C.齿轮传动 D.蜗杆传动
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