综合啮合刚度
combined mesh stiffness
Integrated mesh stiffness
卜然托混合长度假说
Prandtl mixing length hypothesis
长度合理性分析
Analysis of rational length
复合长度光正交码
multi-length optical orthogonal code multi-length
螺纹旋合长度
length of thread engagement
配合长度
matching length
length of thread engagement
length of fit