Self-so自然
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-relaxation training自我放松训练
self-discharging dredger自卸挖泥船
self-purification factor自净系数
self - help organization自助组织
self-launching sailplane自行起飞的滑翔机
self-healing fuse-wire高分子自恢复保险丝
self-sufficient in grain粮食自给自足
self-service petrol pump自动加油泵
self-rotary cutting tool滚切刀具
self organized criticality自组织临界