rotation number

Parameter programmable: slot number, circle number, rotation degree 、 hooking degrees and locomotion can all be programmed.

参数可编程：槽数、匝数、转角度数、挂钩度数、转向等可编程。

About Rotation Number and Expanding Map of Homeomorphism Onto Itself for Torus in Topological Space

拓扑空间中环面自同胚的旋转数及扩张映射

Find the number of degrees rotation of the lower member.

寒暑表降到当年最低度数.

Parameter programmable: slot number , circle number, rotation degree 、 hooking degrees and locomotion can all be programmed.

参数可编程: 槽数 、 匝数 、 转角度数、挂钩度数、转向等可编程.

The draw efficiency of tractor and the old way of surveying rotation efficiency were analysed. The surveying rotation instrument of simple construction, no adding the mains, reading number directly and degree of accuracy over 95% was devised.

通过对拖拉机牵引效率和过去测滑转率方法的分析，提出结构简单、不需外加电源、能直接读数、准确度可达95%以上的简易测滑仪的设计方案。

The effects of jet Reynolds number ( Rej), rotation Reynolds number ( Re ω), the jet-holes array and the distance of jet-to-plate on multiple jets impingement cooling were studied by experiments.

通过实验研究了冲击雷诺数Rej、旋转雷诺数Reω、以及冲击孔的排列方式、冲击孔到靶板之间的距离等参数，对旋转条件下半封闭空间内多孔冲击平均换热特性的影响。