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selfluminousadj.自发光的

1. Based on the previous work, this paper analyses the reason for small self-excited vibration of the aerostatic x-y stage, which reduce the positioning accuracy.
   摘要以前期研究工作为基础，分析了气浮式工作台由于微小自激振动的产生，而引起其定位精度劣化的内在原因。
2. In the regenerative liquid propellant gun,the coupling oscillation of the fluid sys-tem in the reservoir including free vibration and forced vibration may be formed.
   在再生式液体发射药火炮中，贮液室流体系统可能发生由自激振动与强迫振动构成的耦合振荡，在喷射结束期很可能形成共振。