dtr是什么意思？

dtr

• abbr. daughter 女儿，data tape recorder 数字磁带录音机，direct terminal repeat 直接终端重复，double tax (ation) relief 双重课税减免；

例句

• In Huang - huai and Yangtze River reaches the maximum decreases of DTR are in summer and spring. 在黄淮和长江流域,以夏季和春季DTR下降最为显著.
• 'so how is this situation avoided when one uses DTR? " “ 那DTR是如何避免这种情况的? ”
• The DTR concentrator consists of C - Ports and a data transfer unit ( DTU ). DTR集中器由C -Ports (集中器端口,简称C口 )和数据传输器 ( DTU ) 组成.