?转换开关    over changing switch

?过流跳脱    over current trip

?过度膨胀    over expansion

?过[量]膨胀    over expansion

?超载,过量负荷    over load

?过负荷防止装置    over load protecter (OLP)

?综合特性    overall character

?全尺寸    overall dimensions

?全效率    overall efficiency

?全长    overall length

?全满载    overall loading

?全稳度    overall stability

?总温度上升    overall temperature rise

?过度均衡    overbalance

?船外    overboard

?船外排泄管    overboard discharge pipe

?船外排泄阀    overboard discharge valve

?舷外吊索    overboard fall

?过充电    overcharge

?过流继电器    overcurrent relay

?过流跳脱装置    overcurrent tripping device

?过量放电    overdischarge

?溢流管    overflow pipe

?溢流阀    overflow valve

?悬伸    overhang

?翻修,大修    overhaul

?大修检查    overhaul inspection

?架空吊梁    overhead lifting beam

?仰姿    overhead position

?架空吊车    overhead travelling crane

?高架移动起重机    overhead travelling crane

?仰焊    overhead welding

?过热    overheat

?重迭,搭接    overlap

?搭接接头    overlapped joint

?重迭型螺桨    overlapping propeller

?覆盖积层    over-lay up

?超载,过量负荷    overload

?过载出力    overload output

?过载保护装置    overload protection device

?超载替续器    overload relay

?超载试验,过负荷试验    overload test