部分断面隧道掘进机 meaning in English
partial face machine
roadheader
Examples
- Roadheader is a part profile tunnel boring machine which can excavate , convey rock blocks and walk by itself . it is very suitable to excavate soft - rock tunnel
臂式掘进机是一种集开挖、装碴和自动行走于一体的部分断面隧道掘进机，它非常适用于软岩隧道的掘进。