[电学] 操作安全开关 operating switch: 操纵电门; 操作开关; 工作开关; 开机掣safety switch: 紧急开关,保险开关。 operating safety factor: 工作安全系数safety operating area: 安全工作区safety operating regulations: 安全操作规程下载手机词典可随时随地查词查翻译