subage[地质]亚代subn.潜艇；替代品vi.替代vt.转包合同subtroical plant亚热带植物subtidal deposit潮滩沉积subclassificatio次级分类sub model method子模型subclavian steal锁骨下侧支迂回subalar sclerite上侧片subclavian bursa锁骨下囊subcarrier pulse副载波脉冲sublimation vein凝华脉sub-continuity次连续算子