最終更新日：2022/12/24
A Stone-Vapor Watchman
oil-fired preheater raises the cooling water temperature to an optimum figure before the high-speed engine is started and thus minimises engine wear.
編集履歴（0）
A Stone-Vapor Watchman
oil-fired preheater raises the cooling water temperature to an optimum figure before the high-speed engine is started and thus minimises engine wear.
DiQt（ディクト）
無料
★★★★★★★★★★
