abbr.

1. = days after acceptance 承兌後日數
2. = delayed action 【軍】延期爆炸，定時爆炸；延遲作用
3. = deposit account 定期存款
4. = discharge afloat 船上卸貨
5. = district attorney（美國）地方檢察官
6. = do not answer 不答覆，無回音
7. = documents against acceptance 【商】承兌交單，提貨單
8. = documents attached 附件
9. = density-altitude 密度-高度
10. = drift angle（符號）偏航角，偏流角

n.

1. 【口】爸爸，爹爹（= dad）

abbrev.