outer lift meaning in English

外吊扬索

This thesis has done the following work : after studied the development of fault detection and diagnostic techniques in china and lift controller ' s running process , using time petri net , this thesis carries out lift controller ' s normal running petri net model and function running petri net model
本文具体内容包括： 1 、从控制系统故障诊断入手，深入研究电梯控制系统的控制机理，采用时间petri网理论，对电梯控制系统正常运行和功能运行进行了petri网建模。
Using petri nets theory , this thesis carries out lift controller ' s normal running petri net model and function running petri net model . it is successful to use logic fault diagnosis petri net model , which is brought forward by the thesis , into lift controller fault diagnosing
本文运用petri网理论建立了电梯控制系统正常运行故障检测petri网模型及其功能运行故障检测petri网模型；提出逻辑故障诊断petri网模型，并将其运用到电梯控制系统故障诊断中，取得良好效果。