Four frequency diplex telegraphy
[电] 四频双信电报术
🧩 词语组成解析
four
[fɔr]
num. 四;四个;第四;
n. 四的;四个一组之物;
frequency
['frikwənsi]
n. 频繁性;[数][物]频率，次数;频率分布;
fr + equ =equal,even,表示“相等，平均” + enc + y [形容词后缀] → n.屡次；次数；频率
a. 双重通信的, 双重的\\n[电] 双讯
telegraphy
[[ti'legrəfi]]
n. 电报学, 电信术, 电报通讯, 电报机装置\\n[电] 电报术
🗣️ 情景例句
Oh, five or six years ago.
哦，五六年前。
Discontent is the first step in progress.
不知足是前进中的第一步。
but the fire fighters were eventually able to free him by cutting a huge hole in the wall.
消防队员在墙上挖了个大洞，才终于把他解救出来。