单词	hold unit
释义	hold unit 保持装置
随便看	head pond headpool head pore head position head positioner head positioner logic head position error head positioner transducer head position indicator head positioning head-positioning actuator head positioning cartridge head positioning mechanism head positioning time head position pulse head post head post office head presentation head pressing head-pressure head pressure head pressure ga(u)ge head pressure solenoid headprint headprints 一个小园儿一个幽禽缘底事一为取龙城一为取龙城一为迁客去长沙一为钓叟一耕佣一举累十觞一事最奇君记取一二三四五六七一二老寡妻默不作声默会默佑默写默剧默哀默坐默契默尔默志