grade compensation；compensation of gradient；gradient compensation
stochartic parallal gradient gradient descent (SPGD) algorithm
Spring Force of Constant Torque Spring and Wing-up Spring
contact spring pile-up (contact spring assembly)
half-elliptic spring(semi-elliptic spring)
hard spring， hardening spring
plate spring (plate-form-spring)
plate-form spring (plate spring)
Shape and Spring Back of Constant Torque Spring
soft spring ，softening spring
soft spring， softening spring
spring wheat spring corn intercropping system
10 μm accuracy torsional spring meter
2D rigid body spring model
40CrMnSiMoV spring steel
55CrSi oil-tempered spring steel wire