常见例句Analysis on Combinatory Seal of Back Blade and Oiltight 背葉片與油封的組郃密封特性分析conic oiltight hatchcover 圓錐形油密艙口蓋An oiltight bulkhead 油滲不進的艙壁oiltight bulkhead 不滲油艙壁 返回 oiltight