从事于盾构机的大修以及提供技术服务的翻译：Shield machine overhaul and engaged in the provision of technical services 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Engaged in the shield machine overhaul and technical services

Shield machine overhaul and engaged in the provision of technical services

Is engaged in as well as provides the technical service in the shield machine overhaul

Engaged in the shield for the overhaul and provision of technical services

Shield machine overhaul and engaged in the provision of technical services