常見例句雙語例句Whatever the case, the shape of the cross-section of the said sphenoid part is either of an isosceles spherical trapezium or of any spherical quadrilateral.無論哪種情況，楔形體的橫截面形狀要么是有兩條邊相同的球形四邊形，要么是任意球形四邊形。bbs.mf1000.com.cnTheir conical sphenoid part, for the configuration of which at least four conical surfaces are used, can have the same cross section all over its length or different cross-section per parts.圓錐楔形體的結(jié)構(gòu)至少有四個(gè)圓錐面組成，在每個(gè)面上，可以使用相同的橫截面，也可用不同的橫截面。bbs.mf1000.com.cn 返回 sphenoid part