[机]齿槽底面；低洼地；冲积物
bottom───n.(Bottom)人名；(英)博顿；vi.到达底部；建立基础；vt.装底；测量深浅；查明真相；adj.底部的；n.底部；末端；臀部；尽头
land───n.国土；陆地；地面；vt.使…登陆；使…陷于；将…卸下；vi.登陆；到达；n.(Land)人名；(英、德、葡、瑞典)兰德
at bottom───实际上（等于atthebottom）；adv.实际上; 说到底; 骨子里
bottom hole───底孔，下部孔；底孔，井底；下部孔；底部炮眼
bottom view───底视图，仰视图；[机]底视图；[机]仰视图
bottom line───n.概要，账本底线；结果；概要；账本底线；关键
SU Bottom───SU底部
river bottom───河底
bottom drawer───<美>（妇女为结婚准备的）嫁衣
A second major cotton-growing area lay in the rich bottom land of the lower Mississippi River and is tributaries.───第二个主要的棉花种植区是沿着密西西比河下游及其支流的富饶的河滩地。
rich bottom land near the river was studded with tall sycamores, birches, and box elders.───肥沃的河滩地上散布着高大的美国梧桐、白桦树和白蜡槭。
Worldwide food shortages and rock-bottom land prices in Paraguay have made the Chaco the last agricultural frontier.───全球范围的粮食短缺以及巴拉圭岩石底土地价格的飞涨，终于让查科变成了人们争相获取的最后一片农业用地。
Based on these results, the bottom land form is regulated by comparing the bottom shear stress and silt enabling stress.───可通过底面剪应力与泥沙起动应力的比较来调节底床的地形。
Slope-bottom land transition zone was usually neglected in previous exploration but was favorite site of forming lithologic reservoir.───坡洼过渡地区是已往勘探常被忽略的构造带，但却是岩性油藏形成的有利场所。
And in addition, most cities are in unsafe zones, along coastlines where shipping hubs were established, or in river bottom land where commerce was facilitated by river barges.