1) pitch spread
节距，间距
3) nodal pitch
节点间距
1.
The resonance frequency and nodal pitch of symmetrical three step flexural vibration holder have been calculated precisely based on Timoshenko beams theory, and the 3D curved surfaces displaying the variations of the resonance frequency and nodal pitch with the tool holder sizes have been drawn by a computer.
由Ｔｉｍｏｓｈｅｎｋｏ理论推导出对称三阶梯超声频弯曲振动刀杆的振幅分布解和谐振频率方程，并通过编制的计算机程序绘制了表示阶梯刀杆尺寸对谐振频率和节点间距影响的三维曲面。
4) joint spacing
节理间距
1.
An unstable stochastic process is used to simulate the joint spacing, and an artificial joint network is generated by means of Monte-Carlo method.
该方法考虑了节理分布的不均匀性、方向性和成带性特点，采用非平稳态随机过程模拟节理间距，并通过Ｍｏｎｔｅ－Ｃａｒｌｏ方法产生仿真的节理网络，还给出了模拟实例。
6) row-to-row distance
排间距离，节距
补充资料：竹节
竹节
stomach
Zhujle竹节(s tomach)经浮动芯棒连轧管机(见连续轧管机轧韵乳制后出现在钢管头部(2一训和尾部(约4m)的壁厚增大现象。产生这一现象的原因同连轧管时芯棒的运动学特点有关，见连乳管变形原理。 (李冻诗、
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条