edge trave边缘踪迹
pedal trave switch踏板行程开关
table longitudinal trave工作台纵向行程
piston ring trave活塞环行程
switch over-trave转接越程
reserve brake trave制动储备行程
Making preparations to trave做旅行准备
centre of pressure trave压力移动中心
trave time difference走时差表
N（名词） a stout wooden cage in which difficult horses are shod (在钉蹄铁时用以缚马的)木缚架