计量校准和标定
Rectifying and Demarcating
标准定位服务
standard positioning service
SPS
标准定位业务
standard positioning service {= SPS
spindle bearingstandard positioning service
spontaneous emissionstandard positioning service
标准定性数据
standardizing qualitative data
标准定义电视
standard definition television
道路积尘量限定标准
limitation standard of road dust loading