Warning: file_put_contents(/www/wwwroot/ppbbu/80125.cn/cache/48e88460f95e2024575bd1c5ca703f23.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/80125.cn/index.php on line 58 silicon microwave power device例句_silicon microwave power device英汉例句_silicon microwave power device双解例句_食材铺反向词典
A new device structure of silicon bipolar microwave power transistors with so called tree overlay geometry polysilicon emitter has been designed. 设计了一种称之为多晶硅覆盖树技状结构的双极型微波功率晶体管。