design modification短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 设计变更 The method and program developed in this study can de used for missile Conceptual design and for further design modification. 本文所用方法及程序可用于方案论证和改型研宄。 hkxb.buaa.edu.cn What design modification are required to reduce distortions? 如何设计才能减少变形？ onlytech88