“recorded voice announcement (RVA)”的概念、定义、翻译、参考文献-科学参考

单词	recorded voice announcement (RVA)
释义	recorded voice announcement (RVA) 记录声音通知
随便看	service circuit service class service code service command service compartment service completion time service condition service conditions service condition(s) service conductor service connection service contract service corridor service cost service cost centre service counter service counter terminals (SCT) service craft service credit service cycle service data service data unit service dead load service delay service demand factor

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