| 释义 |
〔spiral〕A three-dimensional curve that turns around an axis at a constant or continuously varying distance while moving parallel to the axis; a helix.螺旋：当螺旋浆沿轴转动时，形成的以等距离或不断变化之距离绕轴转动的三维曲线〔middle〕An area or a point equidistant between extremes; a center:当中，中央：离两端等距离的部分或点；中心：〔middle〕Equally distant from extremes or limits; central:当中的；中央的：离两端点或两界点等距离的；中央的： |