便携式电脑用在地震测量已经不是第一次了。
It's not the first time laptop accelerometers have been used for earthquake measurement.
完成了对地震测量数据的SAC 格式存储。
由于牙轮钻头在信号采集、处理等方面的优势,现阶段随钻地震测量主要采用的是牙轮钻头。
In the present SWD survey, roller-cone bit is widely used because of its advantages in signals recording and processing.
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