selfdrivevt.自动推进(自动步进)n.自动推进(自动步进)selfn.自己；本性；自我pron.我自己；你自己；他或她自己adj.始终如一的；同一类型的；性质不变的v.近亲繁殖；自花授粉self-directed regulation自我导向self- poking arrangement自动搅拌装置self-commutated invertor自励式逆度器self-crosslinking method自交联法self-acting rope haulage自重运输self-supporting property自身支撑能力self-adaptive decoupling自适应解耦self-cleaning spark plug自动清洁的火花塞,自净式火花塞self- compaction conrete自密实混凝土self-mixing interference自混合干涉