1) main roof rotary angle
老顶回转角
1.
Based on theory analysis and practical survey in testing ground,had studied influence factors such as caving height,work resistance of supports,coal seam rupture angle,main roof rotary angle and stopping mining time.
通过理论分析和现场实测,研究了采高、支架工作阻力、煤体破裂角及节理面倾角、老顶回转角和停采时间等对采煤工作面煤壁片帮的影响。
2) rotating center
回转顶尖
1.
Study on deflection of high precision rotating center with heavy-duty based on finite element;
基于有限元法的高精度重型回转顶尖挠度的研究
3) rotary canopy
回转顶梁
1.
A new type rotary canopy-end support which is used in the presence of medium stable roof or rigid roof and pitching coal of deformed section way is introduced.
介绍了一种针对中等稳定或坚硬顶板条件下倾斜煤层工作面而形成的异形断面巷道中使用的新型回转顶梁端头支架,并对该型端头支架的设计要点、结构特点、技术参数和支架在井下应用效果作了阐述。
4) initial backlash
空回转角
1.
An accurate calculation method of initial backlash of the pin and cycloid transmission with teeth profile modified is presented according to the distance measured on common normal of actual teeth profile.
运用该程序,还研究了修形方式与初始间隙、修形量与空回转角及啮合位置的关系,得出了负等距加正移距修形可以获得最小的空转角度、啮合位置与修形量大小有关的结论,并用以指导汽车座椅调角器性能的改进设计。
5) revolving cam;rotating cam
回转三角
6) angular rotation
角的回转
补充资料：顶老
1.指妓女﹑歌妓。宋﹑元﹑明时的调侃之语。 2.指妓院中的一种行当。犹今云乌龟﹑捞毛之类。 3.指头，头顶。
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