CA

= CAble,电缆;

= CAncel, 取消，作废;

= CArry, 进位;

= Cascade Amplifier, 级联放大器;

= Cellular Automaton, 点格自动机，细胞(式)自动机;

= Channel Adapter, 通道适配器;

= Chemical Abstracts (A commercial data base), 化学文摘(一种商品数据库)