Inglés ⇄ Ruso Vietnamita +

Inglés tesauro
observation ['ɔbzə'veɪʃ(ə)n] abbr.
abrev.	obbo; observ; obsv
abrev., mil.	obsn; obsr
mil., logíst.	The condition of weather and terrain that permits a force to see the friendly, enemy, and neutral personnel and systems, and key aspects of the environment. (FRA)