Instrument need calibration, reduce calibrationperiod.
仪器需要校正，缩短校正周期。
2
Following a 60-day checkout and calibrationperiod, GLAST will transmit more than 100 gigabits of information daily to NASA scientists.
经过为期60天的检查和校准之后，GLAST将会为NASA的科学家传回超过每天1000亿字节的信息。
3
All the testing instruments and critical instruments of system are with their respective calibration certificates and the calibration certificates are within the valid calibrationperiod.