10. Which glossary below means a vertical or horizontal sliding steel gates operated by hydraulic or electric power either locally or remotely for sealing the openings of sub-division bulkheads?
(A) Watertight scuttle
(B) Watertight door
(C) Hull plating
(D) Framing

以下哪個詞彙指的是由液壓或電力驅動、可在本地或遠程操作的垂直或水平滑動鋼製閘門，用於密封分隔艙壁的開口？