1. 定计的意思
1. ratemeter:1959 rate of disintegration 蜕变 | 1960 ratemeter 定计 | 1961 rating 额定值
2. Auto Balanced Over Head Ion Blower:定计 Auto Balanced Over Head Ion Blower | 环境试验设备 Temperature,Humidity Testing Chamber | 防湿保管库 Moisture-proof Storage Nanotechnology