bulk·head /ˈbʌlkˌhɛd, ˈbʌlˌkɛd/
隔壁,防水壁,分壁
Bulk·head n.
1. Naut. A partition in a vessel, to separate apartments on the same deck.
2. A structure of wood or stone, to resist the pressure of earth or water; a partition wall or structure, as in a mine; the limiting wall along a water front.
Bulked line, a line beyond which a wharf must not project; -- usually, the harbor line.
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bulkhead
n : a partition that divides a ship or plane into compartments