selftyingn.自动捆扎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-punitive behavior自罚行为self-leveling spreader自动水平调节吊具self-liquidating trust自偿信托self-regulated learner自主学习者self-cleaning drilling自动除粉钻进self-realization needs自我实现需要self-adjusting balance自调平衡self-moving bolt drill自移式螺杆钻Self adjusting parameter自适应self-service bookstore自助书店