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瞬变电磁超前探测
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瞬变电磁超前探测
Encyclopedia
理学
矿井瞬变电磁法
释
advance detection by transient electromagnetic methods
瞬变电磁超前探测
利用发射回线源向掘进工作面前方发送一次脉冲电磁场,在发射间歇期间,利用接受线圈观测前方良导体受激励产生的涡旋电流二次感应场,据此预测预报前方含、导水构造等地质异常的矿井瞬变电磁法。
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calibration for radio observation
calibration gas
calibration gas generating system
calibration in the radiative calibration site
calibration method of radioactivity instruments
calibration method with auxiliary sound source
calibration method with three reciprocity microphones
calibration model transfer
calibration of airborne radioactivity system
calibration of focal plane position of collimator
calibration of neutron measurement instruments
calibration of radioactive instruments
calibration of weights
calibration procedure
calibration source
calibration spectrum
calibration star
calibration system
calibration technique of engine test bed
calibration technology of engine intake air flow
calibration tool
calibrator
calibrator for extensometer
calibre
calicheamicin
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