p.a

• (=post applicationem) (拉)应用后； 敷用后,(=pro anno) (拉)一年； 某年

英英释义

名词 pa:

1. an informal term for a father; probably derived from baby talk

2. a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead

3. a unit of pressure equal to one newton per square meter

4. a Mid-Atlantic state; one of the original 13 colonies

5. an electronic amplification system used as a communication system in public areas