evanescentadj.迅速消失的;短暂的
evanescent object瞬态目标
evanescent-field渐逝场
evanescent voltage衰减电压
evanescent regular衰减规律
evanescent coupling倏逝波
evanescent eruption一过性皮疹
evanescent waveguide隐失波导
evanescent elasticity渐消弹性
evanescent light wave瞬逝光波
evanescent surface wave消失表面波