Responsible for maintenance to guestroom facilities i. e. Television, Radio and Telephone.
负责客房内设施的维修保养。例如电视，广播以及电话。
It can be applied to school indoor radio, television and other on-site facilities.
本设计适用于学校室内无线广播教学、电视现场等。
It can be applied to school indoor radio, television and other on-site facilities.
本设计适用于学校室内无线广播教学、电视现场等。
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