- conservation, preservation;〔機械などの〕maintenance
保全する keep; preserve; maintain
- 民間伝承[領土]を保全する
- preserve folklore [the nation's territorial integrity]
- 財産を保全する
- keep one's property intact
- 国立公園の森林の保全
- the conservation of forests [woodlands] in national parks
- 環境保全
- environmental protection/the preservation of the environment
- 彼は常に身の保全に努めた
- He always strove 「to protect his position [to keep his position secure].