CASDn.计算机辅助结构设计CASabbr.高级研究证书（=Certificate of Advanced Studyabbr.标定空速（=Calibrated Air Speed)Cascadian orogeny卡斯卡底造山运动casing protective护套casing distortion套变cascading glacier湍降冰川cascode ampliffer射地基地放大器casing set-back套管台casing drill-in套管送下程序casing shoe blank套管靴铸坯casing protection套管保护casing-head gas油井气