词汇	excitation period
释义	excitation period 兴奋期
随便看	double surface planer double surfacer doublesurface transistor double surface transistor double-surface transistor double surface treatment double-surface wood planer double surplus double surpluses double surplus imbalance double surround track double survey station double surviving double suspended channel double suspension Double suspension jib double suture double-suturing double swage hammer double-swage saw double swallowsharp refrigerator Double Swallow/Sharp refrigerator double sweep method double sweep tee double sweep tinning unit