LL

LL

1. ■ = Land Lines 陆上通信[运输]线;

2. ■ Late Latin 后期拉丁语;

3. ■ Low Latin (公元二世纪的)民间拉丁语, 俗拉丁语;

4. ■ Low Level 低电平; 低标高;

5. ■ Lower Limit 下限