1) distance between two screw points
双入点间距
1.
M ethods: The e ntrance points of screw and the distance between two screw points were measured.
目的 :提供椎弓根螺钉入点定位法及双入点间距的解剖学资料。
2) access spacing
接入间距
1.
Intersection spacing has three main categories, including signed intersection spacing, unsigned access spacing and corner spacing.
平面交叉口间距主要包括信号交叉口的间距、无信号接入间距以及支路与交叉口的间距。
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) distance between weld spots
焊点间距
1.
The influence of the distance between weld spots on static strength was studied by FEM in this paper.
通过对多点焊搭接构件的有限元分析，探讨了焊点间距对强度的影响，并与已有的实验结果比较，能较好的对应。
2.
The paper studied the influence of the distance between weld spots on static and fatigue strength by the experiments of multi spot welded plate,and we got the stress distribution around the weld spots by our mechanical model,it tallied with our experiment date.
通过研究多点焊搭接构件的静强度与疲劳强度，探讨了焊点间距对强度的影响，并且用弹性力学模型分析了板中焊点附近的应力状态，与实验结果能较好地对应。
5) stop spacing
站点间距
6) compaction spacing
夯点间距
补充资料：闭式单点、双点压力机
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主要参数内容 | 国际先进 | 国内先进 | 国内一般 | 国内落后 | 评定方法及说明 | ||
（一）加工精度 | 参照GB10924-89、GB10933-89、JB5200-91 | ||||||
1、滑块下平面对工作台上平面的平行度（mm） | 30%精度储备 | 20%精度储备 | 达到规定值 | 大于规定值 | |||
0.02+0.10/100×滑块下平面的被测长度 | |||||||
2、滑块行程对工作台上平面的垂直度 | 30%精度储备 | 20%精度储备 | 达到规定值 | 大于规定值 | |||
0.05+0.02/100×滑块行程长度 | |||||||
（二）结构性能 | |||||||
1、离合器、制动器接通率，当滑块行程次数≤16次/分时为70%，≤25次/分时为60%，≤45次/分时为50% | 大于规定值10% | 大于规定值 | 达到规定值 | 达不到规定值 | |||
2、液压超负荷保险装置、微调装置、吨位指示器 | 全部具有 | 全部具有 | 部分具有 | 没有 | |||
（三）噪声dB（A） | |||||||
1、公称力≤400kN | ≤85 | ≤87 | ≤88 | ＞88 | |||
2、公称力＞400kN | ≤87 | ≤88 | ≤90 | ＞90 | |||
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