tas
基本解释
abbr. 旅游者援助协会(Traveler ' s Aid Society);电话接听系统(Telephone Answering System);实际空速(True Airspeed);印字电报机自动换接(Teleprinter Automatic Switching)
英文释义
n a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
词形变化
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