基本解釋n.準(zhǔn)線同根派生 directrices相關(guān)詞英漢例句A fixed point whose relationship with a directrix determines a conic section. 焦點(diǎn)一個(gè)與準(zhǔn)線的關(guān)系決定圓錐形狀的定點(diǎn)A solid bounded by two parallel planes and such a surface,especially such a surface having a circle as its directrix. 圓柱體由兩個(gè)平行平面和這樣的表面,特別是有一個(gè)圓作為其準(zhǔn)線的平面所形成的柱體A solid bounded by two parallel planes and such a surface, especially such a surface having a circle as its directrix. 圓柱體由兩個(gè)平行平面和這樣的表面,特別是有一個(gè)圓作為其準(zhǔn)線的平面所形成的柱體The coastline is the base directrix divides the region of sea and land management. 海岸線是劃分海洋與陸地管理區(qū)域的基準(zhǔn)線。The surface generated by a straight line,the generator,passing through a fixed point,the vertex,and moving along a fixed curve,the directrix. 錐面由一條直線,即母線,通過(guò)一固定點(diǎn),即頂點(diǎn),沿一給定曲線,即準(zhǔn)線,連續(xù)移動(dòng)而產(chǎn)生的平面。directrices更多例句