在国民医疗保健系统的救助下，他免于致残。The national health system saved him from becoming a cripple.教育主管部门得救助贫困儿童。The education authorities have to provide for children in need.省议会对所有的经济救助请求都充耳不闻。The provincial assembly were deaf to all pl...
本文就风机性能测定中常用的三种测风方法加以阐述和评价.This article introduces three Methods : To measure ventilator in the measurement of performance.本章最后简单介绍了信号模拟,从而可以估计测风激光雷达的性能.Simulation of the the lidar signal to evaluate the performance of D...