词汇	double lever
释义	double lever 双杠杆
随便看	printed-circuit card printed circuit card jack printed-circuit card jack printed circuit coded disc printed circuit connector printed-circuit connector printed circuit defect printed-circuit defect printed-circuit defects printed circuit dipole property printed circuit direct current motor printed-circuit direct current motor printed circuited board printed circuit edge connector printed circuit epoxy-type coating printed circuit fabrication printed circuit generator printed-circuit gold plating Printed circuit hoard Printed Circuit Keyboard printed circuit lamp printed circuit layout printed circuit making printed circuit manufacture printed circuit master drawing