技术不足，未能掌握正确方法及操控作业时间。
Poor technique in proper method and time control acquisition.
申请机构必须自行聘请专业技术员操控音响系统控制板及灯光控制板。
Applicant should employ his own specialist technician to operate the audio system panel and lighting panel.
申请机构必须自行聘请专业技术员操控音响系统控制板及灯光控制板。
Applicant should employ his own specialist technician to operate the audio system panel and lighting panel.
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