質問ありがとうございます!
"研修合宿" = Training Camp" or "Training Course” になります
研修 = Training
合宿 = Camp/Course
”会社では年に1回ほど研修合宿があり座学で現場に行かせる知識を教わります。”
At our company we have a training camp about once a year where we are sent to attend a class and are taught new information.
また質問をお待ちしています!