portable ram外置式油缸portableadj.轻便的；手提式的；[计]可移植的n.便携的东西Portable seicmographic station流动地震台portable liquid level detector便携式液位检测器portable polyurethane foam kit便携式聚氨酯发泡工具portable double band projector手提双频带放映机portable emergency transceiver便携式应急收发信机portable diesel generating set移动式柴油发电机组portable fardization apparatus轻便式感应治疗机portable axial flow ventilator便携式轴流通风机portable infrared gas analyzer便携式红外气体分析仪Portable Communications System便携式通信系统