flat on bottom (FOB)

Design of Translating Flat-bottomed Follower Disc Cam Contour Based on UG基于UG表达式的直动平底从动件盘形凸轮廓形设计3wB汉语字典

Invert Level I.L渠底平水（俗名行水位）3wB汉语字典

channeled substrate planar laser沟道衬底平面激光器3wB汉语字典

horizontal sync pedestal水平同步脉冲基底电平3wB汉语字典

The ocean bottom is made up of smooth plains.洋底由平坦的平原构成。3wB汉语字典

A flat-bottomed sailing boat with two masts.双桅平底船有双桅的平底帆船3wB汉语字典

The person who propels a gondola.平底船船夫摇平底船的人3wB汉语字典

the sill of a window (the horizontal member at the bottom of the window frame).窗户的底木（窗框底部的水平部分）。3wB汉语字典

Do not touch the pan, the handle is hot .别碰平底锅，锅把烫手。3wB汉语字典

Automatic hydraulic sole attaching press油压自动平衡压底机3wB汉语字典

colour burst pedestal彩色同步脉冲基底电平3wB汉语字典

This pan is covered with enamel.这只平底锅上了搪瓷。3wB汉语字典

The bisectors of its base angles are equal.底角的平分线是相等的。3wB汉语字典

Highly respectable gondoliers.可敬的平底船船夫[34]!3wB汉语字典

counterbore with guide有导柱的平底扩充孔钻3wB汉语字典

To carry in a punt.用方头或平底船拖运3wB汉语字典

hydraulic auto-balanced sole attaching machine液压式自动平衡上底机3wB汉语字典

auto hydraulic balancing sole attaching machine液压式平衡自动上底机3wB汉语字典

nontilting-negative-plane rectifier底片平面无倾斜纠正仪3wB汉语字典