magnifier

Taking the design of the auxiliary power supply unit for maglev train as an example, the author highlights the ramp compensation circuit and MOSFET grid drive circuit, and optimizes the design of the compensation network for error magnifier.

通过磁悬浮列车辅助电源的设计实例，着重分析了斜坡补偿电路和MOSFET栅极驱动电路，并对误差放大器补偿网络进行了优化设计。

Methods In 21 cases of neonate cheiloplasty, both infraorbital nerves were anesthetized, then the point was fixed and operated beneath magnifier, using the Millard or Tennison's method.

方法21例新生儿单侧唇裂，在双侧眶下神经行阻滞麻醉，于手术放大镜下定点及手术操作，采用Millard或Tennison，以及对偶三角瓣法进行修复。

The utility model comprises a shell body, a thermoelectric couple, an overvoltage protector, an analog switch, a magnifier, a display meter and a power source.

包括壳体、热电偶、过压保护器、模拟开关、放大器、视表、电源。