工学 改建工程 释 emergency maintenance 应急性养护 突发情况下造成路面损毁、中断、产生重大安全隐患等，为较快恢复路面安全、通行能力而实施的应急性抢通、保通和抢修养护工程。
计算机硬件 计算机维护 释文 emergency maintenance 应急维修
- OIRT
- O-isopropyl-N-ethyl thionocarbamate
- OISTAT
- OIT
- Oita-ken
- Ojibway
- Ojibwe
- Ojiya-chijimi, Echigo-jofu: techniques of making ramie fabric in Uonuma region, Niigata Prefecture
- O. Jrisch
- OK
- Okadaic acid
- okadaic acid
- okada's jelly tester
- Okada Toshiki
- Okada Yoshitomo
- Oka Kiyoshi
- Okakura Tenshin
- Okamoto Shunzō
- Okamoto Tarō
- Okamura Hiroshi
- Okamura Yasuji
- Oka niobium deposit
- Okapi Wildlife Reserve
- Oka principle
- Oka River