How can I make my own seismometer?
我怎样才能做一个我自己的测震仪？
A seismometer is a seismograph whose physical constants are so well known.
地震计是一种地震仪器，其物理常数是已知的。
Some fundamental problems in accurate measurement of seismometer transfer function are studied in detail.
本文详细地研究了对地震计传递函数测定的一些基本问题。
Some fundamental problems in accurate measurement of seismometer transfer function are studied in detail.
本文详细地研究了对地震计传递函数测定的一些基本问题。
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