the tip of the axis

Variable pitch vertical axis turbines have been proposed, which can markedly increase the power extraction efficiency at low tip speed through controlling the rotor blades pitch at all points of their rotation cycle.

目前已经提出了一种变螺距垂直轴水轮机，它可以通过控制转子在一个旋转周期上所有点的叶片间距来显著提高能量的提取效率。

The influence of solidity and aspect ratio on power coefficient of H-type vertical axis wind turbine, and the change of attack angle with tip speed ratio were analyzed.

采用多流管模型分析了H型垂直风力机展弦比和实度对其功率系数的影响，并对叶片旋转过程中攻角随尖速比的变化进行了分析。

the tip of the axis

轴的末端

The chair frame is connected with the chair framework through a revolution axis joint chair, screws and cap nuts, making the seat frame capable of tip-up and more convenient for taking articles.

座框与座框架用转轴接座及螺钉螺母连接，使座框可以翻起，取用物品更方便；

Combined with the simulation results and the vertical axis of the impeller tip speed ratio theory, that is required to improve the transmission speed increasing ratio, in order to meet the project of Hydropower for water flow energy with low water speed.

结合仿真结果以及垂直轴叶轮叶尖速比的理论推导，表明需提高变速箱增速比，才能符合水流发电装置低水速运行的要求。