单位矢量 unit vector
当量齿轮 equivalent spur gear; virtual gear
当量齿数 equivalent teeth number; virtual number of teeth
当量摩擦系数 equivalent coefficient of friction
当量载荷 equivalent load
刀具 cutter
导数 derivative
倒角 chamfer
导热性 conduction of heat
导程 lead
导程角 lead angle
等加等减速运动规律 parabolic motion; constant acceleration and deceleration motion
等速运动规律 uniform motion; constant velocity motion
等径凸轮 conjugate yoke radial cam
等宽凸轮 constant-breadth cam
等效构件 equivalent link
等效力 equivalent force
等效力矩 equivalent moment of force
等效量 equivalent
等效质量 equivalent mass
等效转动惯量 equivalent moment of inertia
等效动力学模型 dynamically equivalent model
底座 chassis
低副 lower pair
点划线 chain dotted line
（疲劳）点蚀 pitting
垫圈 gasket
垫片密封 gasket seal
碟形弹簧 belleville spring
顶隙 bottom clearance
定轴轮系 ordinary gear train; gear train with fixed axes
动力学 dynamics
动密封 kinematical seal
动能 dynamic energy
动力粘度 dynamic viscosity
动力润滑 dynamic lubrication

[下接机械设计专业术语(6)]

(今日五金采编)