船底: hull bottom空缺: vacancy; opening面积: area船底割切部面积: area under cut-up空缺: vacant position; vacancy 递补空缺 fill (up) a vacancy by election; 待遇优厚的打字员和职员的空缺 good vacancy for typists and clerks; 内阁中的空缺 a vacancy in the cabinet船底: hull bottom 这艘船的船底已损坏。 the ship sustained damage to her bottom破缺面: chipped area缺面的: merohedral; merosymmetric缺面体: merohdrism缺面相: merohedrism缺面象: merohedrism; merohedry缺面形: merohedral form底空间: base space缺面体(结晶): merohedrism缺面象的: merohedral本底空气: background air底空楼板: hollow backed flooring; hollow-backed flooring双层底空间: double-bottom space吃空缺: pay the payroll空缺的: vacant空缺额: vacancies空缺集: vacancy set空缺率: vacancy rate空职;空缺: vacancy本底空气污染: background air pollution