附录 F：机械配合的规定
Neppiras（第 301 页）断言："螺纹中的动态摩擦损耗构成了系统机械阻尼的大部分，因此要求螺纹配合良好。"Jones-Maropis 换能器专利以及 DeAngelis 也表达了同样的观点。
Appendix F: Specifying mechanical fits
Neppiras (p. 301) asserts, "Dynamic frictional losses in the screw-threads account for most of the mechanical damping in the system, so that well-fitting threads are called for." This was echoed by Jones-Maropis transducer patent; DeAngelis.