[电学] 通过韧性的操作元件打开开关 flexible switch: 可弯式尖轨转辙器pull switch: 拉线电门; 拉线开关pull-switch: 接线开关operating switch: 操纵电门; 操作开关; 工作开关; 开机掣ceiling pull switch: 顶棚拉线开关下载手机词典可随时随地查词查翻译