目的：探讨腹腔镜技术治疗急性胆源性胰腺炎的可行性、有效性和手术方法。
Objective: To evaluate the effect and the surgical technique for treatment of acute gallstone pancreatitis with laparoscope.
图像自动聚焦评价函数的选择是全自动控制显微镜无源方式自动聚焦系统的关键问题。
Choosing auto focusing evaluation function for images is a key factor for passive auto focusing system of automatic microscope.
其设计特点是采用了共源共栅电流镜，运放的输出作为驱动的同时还作为自身的偏置电路；其次是采用了带隙温度补偿技术。
The cascade current mirror was used in the circuit, and the output of the OPAMP was used for the bias of itself and to drive the next stage.
应用推荐