Precision line rail way to make the move more stable, operating more convenient;
精密线轨移动方式使机台工作更稳定，操作更便捷；
He carries it in his lab coat pocket or his briefcase, which is much more convenient than his medical center's ultrasound machine, housed on a cart in the operating room.
相对于医疗中心手术室那台庞大的超声设备来说，它无疑方便许多。
Moving more convenient operating flexibility, improved body structure and caster design, use and move more convenient.
移动更方便经营更灵活，改进的车身结构和万向轮设计，使用和移动起来更方便。
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