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 video tape recorder手提式磁带录像机
portable X-ray fluorometer轻便X射线荧光仪
Portable Data Program System便携式数据程序系统
portable crank shaft grinder移动式曲轴磨床
Portable Electronic Telephone轻便电子电话机
portable ultrasonic flowmeter便携式超声波流量计
portable sound film projector移动式有声电影放映机
portable aspirating equipment便携式吸气装备
Portable exhaust gas analyzer便携式气体分析仪