实际啮合线段
Actual Falling-in Line Segment
符合实际使用状况的试验条件
actual use test conditions
结合实际
considering current status
实际实物生产率
marginal physical productivity
齿面与棱线啮合
Teeth faces mesh with the cone lines
点线啮合齿轮传动
point-line meshing gear transmission
端面啮合线
transverse path of contact
空间曲线啮合方程
Equation of space meshed curve
空间曲线啮合轮
Space-Curve-Meshing-Wheel(SCMW
理论啮合线
theoretical line of action
theoretic meshing line