arc subtended by a chord的意思|示意
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对弦弧
arc subtended by a chord的网络常见释义
对弦弧 ... camel back top chordn.驼背上弦杆 arc subtended by a chordn.对弦弧 cascadepitch-chord ration.叶栅的栅距弦长比,相对栅距 ...