external indicatoroutside indicator外: outside; external side指示剂: indicator; tracer agent厅外指示灯: hall lantern外指示器: external indicator指示剂: phindicatorph; tracer agent; visual indicator下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:外指示剂，即可在微信中查询翻译
