底;底部: bottom n. the lowest part底部,底法: boston charge底部;底: bottom底部;末端: bottom底部;屁股: bottom底部的: basal底部口: bottom opening底部隆: bottom heave底部区: bottom region底部水: bottom water基底部: basal part; basilar part室底部: chamber base在底部: at the base; at the bottom; in depth; on the bottom之底部: the foot of底部纵材;底部纵骨: bottom longitudinal桥脑底部,脑桥底部: pars basilaris pontis瓣膜基底部: base of valve冰川底部的: subglacial采石场底部: quarry floor超深海底部: ultra abyssal bottom; ultra-abyssal bottom沉垫底部: mat bottom沉积层底部: bottom of sedimentary bed冲向底部: run to bottom船身底部图: view of hull bottom底布植绒毛毯: batt-on-base b.o.b底布渗浆: cloth penetration