“镜检查”用英语怎么说

卫兵进入前透过门镜检查了一下。The guards checked at the peephole before entering.纤维支气管镜检查有很大的帮助.Fiberoptic bronchoscopy may be of great help.内腔镜检查将必然成为标准方法.Fibroptic endoscopy will almost certainly become the standard....