English: specialist technical professional who designs, develops, builds, installs, inspects and maintains the propulsion systems, engines, pumps and other pieces of technical equipment that make boats and other maritime vessels function effectively
Japanese: ボート等の船舶を効果的に機能させる推進システム、エンジン、ポンプ、その他の技術機器を設計、開発、構築、設置、検査、保守する技術専門家