voidadj.空的;无效的;缺乏的n.真空;空白;空虚vt.使无效;排泄;使空出vi.排泄
void class空类,空集
void value没有价值
void meter空隙计
void ratio空隙比,空隙率,孔隙比
void-free无空隙的
void ratior孔隙比
void vertex虚顶点
voided slab空心板
voided card作废卡
"my bank check was voided and I wanted to know who the invalidator was"