常見(jiàn)例句In this paper,a new small-sized bit is introduced.The bit is mainly composed of a biassed polyconic cutter,a cylindric roller and two bit legs. 文章介紹了一種新型小尺寸鉆頭，它主要由一個(gè)偏置的多錐形牙輪和一個(gè)圓柱形滾輪及兩個(gè)牙掌組成。modification polyconic projection 改良多圓錐投影rectangular polyconic projection 正交多圓錐投影world polyconic grid 世界多圓錐投影坐標(biāo)方格ordinary polyconic projection 普通多圓錐投影 返回 polyconic