短語(yǔ)詞組短語(yǔ)tool radius bias vector 刀具半徑偏置矢量radius of vector 向量徑radius s vector 矢徑radius vector equation 矢徑方程interior radius vector sweeping 內(nèi)點(diǎn)極徑掃描法geocentric radius vector 地心向徑radius vector of planet 行星公徑radius vector load 水平荷載reciprocal radius vector 反向徑 返回 radius vector