Warning: file_put_contents(/www/wwwroot/ppbbbu/5356789.com/cache/27cceb6d430f6c1ffc8761c7cb2fc497.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/5356789.com/index.php on line 55 radio astronomical receiver例句_radio astronomical receiver英汉例句_radio astronomical receiver双解例句_零六五六深蓝词典
Microwave receiver system is the indispensable signal receiving equipment in radio astronomical observations. 微波接收機系統是射電天文觀測不可或缺的信號接收設備。 journal.yeyanet.com.cn