Terms containing echo method

Subject	English	Chinese
chem.	double pulsed field gradient spin echo method and NOE spectroscopy	双脉冲场梯度自旋回波法-核欧沃豪斯效应谱
met.	echo method	回波法
bridg.constr.	echo method	回音法
met.	echo method	回声法
tech.	pulse echo method	脉冲反射法
met.	pulse echo method	脉冲回波探伤法
oil	pulse-echo method	脉冲反射法
tech.	pulse echo method	脉冲回波法
tech.	radio echo method	无线电回波法
chem.	spin-echo method	自旋回波法
tech.	spin echo method	自旋回波法
mining.	ultrasonic echo method	超声波回声法