短語(yǔ)詞組短語(yǔ)secant t line 割線(xiàn)a secant line 的繙譯是一個(gè)正切行;切線(xiàn)secant line integral 割線(xiàn)積分isoclinal secant line 等傾割線(xiàn)secant line of a circle 圓的割線(xiàn)secant line of a sphere 球的割線(xiàn) 返回 secant line