objective function 目标函数

offset 偏置式

offset circle 偏距圆

offset distance 偏( 心 ) 距

offset knife-edge follower 偏置尖底从动件

offset roller follower 偏置滚子从动件

offset slider-crank mechanism 偏置曲柄滑块机构

oil bearing 含油轴承

oil bottle 油杯

oil can 油壶

oil consumption 耗油量

oil consumption factor 耗油量系数

oily ditch seal 油沟密封

Oldham coupling 双转块机构

on-net design, OND 网上设计

open chain mechanism 开链机构

open kinematic chain 开式链

open-belt drive 开口传动

operation control device 操纵及控制装置

operation mechanism 工作机构

optimal design 优化设计

ordinary gear train; gear train with fixed axes 定轴轮系

ordinate 纵坐标

original mechanism 原始机构

oscillating bar 摆杆

oscillating follower 摆动从动件

oscillating guide-bar mechanism 摆动导杆机构

other mechanism in common use 其他常用机构

outer ring 外圈

output link 输出构件

output mechanism 输出机构

output shaft 输出轴

output torque 输出力矩

output work 输出功

overlap contact ratio 纵向重合度

packer 打包机

paired mounting 成对安装

parabolic motion 抛物线运动

parabolic motion; constant acceleration and deceleration motion 等加等减速运动规律

parallel combined mechanism 并联组合机构

parallel helical gears 平面轴斜齿轮

parallel key 普通平键

parallel mechanism 并联机构

parameterization design, PD 参数化设计

partial balance of shaking force 惯性力部分平衡

passive degree of freedom 局部自由度

path generation 轨迹生成

path generator 轨迹发生器

pawl 棘爪

pedal 踏板

periodic speed fluctuation 周期性速度波动

phase angle of unbalance 不平衡相位

pin 销

pinion 小齿轮

pinion and rack 齿轮齿条机构

pinion cutter; pinion-shaped shaper cutter 齿轮插刀

pinion unit 齿轮传动系

pitch 周节

pitch circle 节圆

pitch cone 节圆锥

pitch cone angle 节圆锥角

pitch curve 理论廓线

pitch curve 凸轮理论廓线

pitch diameter 节圆直径

pitch line 节线

pitch point 节点

pitting （疲劳）点蚀

planar cam 平面凸轮

planar cam mechanism 平面凸轮机构

planar kinematic pair 平面运动副

planar linkage 平面连杆机构

planar mechanism 平面机构

planar pair, flat pair 平面副

planet gear 行星轮

planetary differential 封闭差动轮系

planetary drive with small teeth difference 少齿差行星传动

planetary gear train 行星轮系

planetary speed changing devices 行星轮变速装置

planetary transmission 行星齿轮装置

plasticine 橡皮泥

pneumatic mechanism 气动机构

pointing; cusp 尖点

polar coordinate manipulator 球坐标操作器

poly V-belt 多楔带

polynomial motion 多项式运动规律

pose , position and orientation 位姿

positive-drive (or form-closed) cam mechanism 形封闭凸轮机构

potted component 密封元件

powder metallurgy 粉末合金

power 功率

power screw 螺旋传动

power spring 涡圈形盘簧

preload 预紧力

pressure 压力

pressure angle 压力角

pressure angle of base circle 基圆压力角

pressure angle of involute 渐开线压力角

prime mover 原动机

primer mover 原动机

prismatic joint 移动关节

prismatic pair, sliding pair 移动副

productive resistance 生产阻力

pulsating stepless speed changes 脉动无级变速

punch 冲床