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美国TSD-1型热退磁仪本身不能用于地磁场古强度的研究,为了克服这一缺点,作者改进了该仪器.利用改进后的TSD-1仪可获得可靠的古强度,而且这一改进具有显著的经济效益。
The United States TSD-1 thermal demagnetization device itself can not be used to study the ancient magnetic field intensity, in order to overcome this shortcoming, the author improved the instrument.Using the improved TSD-1 instrument can obtain reliable ancient strength, and this improvement Has significant economic benefits.