assistvt.帮助；协助vi.帮助；出席n.帮助；协助；助攻；协助的器械Assisted hatching辅助孵化assisting vehicle补机assistive product辅助产品assisted retrieval辅助检索assist sb's memory帮助某人回忆assisted diagnosis辅助诊断assist circulation辅助循环assist-catalysis外加“场”辅助Assisted selection辅助选择assistive exercise辅助运动, 助力运动

1. A new EDM technology-ultrasonic vibration assisted electrical discharge machining in gas was proposed and corresponding experimental equipment was designed.
   摘要简述了超声振动辅助气体介质电火花加工原理，并设计开发了相应的实验机床。