photoelectric whirl measuring a aratusphotoelectric whirl measuring apparatus光电: photoelectricity转速: speed; revolution; rotation ...测量: survey; measure仪: appearance; bearing瞬时转速测量仪: measuring i trument for i tantaneous velocity; measuring instrument for instantaneous velocity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:光电转速测量仪，即可在微信中查询翻译
