Based on the original pole net of the building, the inside turns out to be a ring-like space structure: the central district is island-style space surrounded by iron bookshelf walls.

基于建筑原有的柱网，室内呈现出环状的空间结构：中央区域为岛式空间，周边为铁制书架墙体。

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In a permanent magnet brushless motor, airgap field excited by a 2-pole magnet ring with parallel magnetisation is sinusoidal.

永磁无刷电机中，平行充磁的2极磁环产生的气隙磁场是正弦分布的。

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In this paper, the shock absorber with two-cylinder used them as the working fluids, in the outside cylinder there is a ring-liked gap channel around the electric pole.

本文将其用于环形间隙通道外置的双缸电流变液体减振器。同时，对电流变液减振器在同时外加电场和垂直磁场作用下阻尼力的变化进行了理论研究和台架实验研究。

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