as smart as a new pin
【电学】活节连接
pin joint
暂无补充释义。
相关词条
safety pin
pin assignment
pin
gudgeon pin
pin
knock-out pin
crank-pin, resilient
pin joint
暂无补充释义。
as smart as a new pin
safety pin
pin assignment
pin
gudgeon pin
pin
knock-out pin
crank-pin, resilient