求翻译：本课题的目的在于提供一种结构紧凑、体积小、便于携带而适于维修现场使用的坡口机，特别适用于维修现场切削管道类零件的焊接坡口。是什么意思？

The purpose of this subject is to provide a compact structure, small size, easy to carry and suitable for the maintenance field, beveling machine, especially suitable for cutting pipe parts for maintenance of site welding groove.

This subject aims to provide a compact structure, small volume, easy to carry and suitable for repair on-site use of the slope is ideal for use in service, on-site cutting pipe welding class part of the Port Hills.

This topic goal lies in provides one kind of structure compact, the volume small, is advantageous for the carryhome to be suitable for to service the field use the bevel machine, is suitable specially in services the scene cutting pipeline class components the welding scarf.

Purpose of this project is to provide a compact structure, small size, easy to carry and suitable for the maintenance site of Groove machine, particularly suitable for maintenance onsite cutting of welding Groove of pipe parts.

正在翻译，请等待...