词汇	回波高度
释义	回波高度医Echo height
随便看	external-standard channels ratio external standard Compton edge method external standard control sample external standardization external standard method external standard quench correction external-standard quench correction external standard ratio external standard source external star wheel fertilizer distriburtor external star-wheel fertilizer distributor external statement EXTERNAL statement externalstaticcharacteristic external static characteristic external static variable external stator external status word interrupt external status words interrupt external stemming external straight turning external strain external strain gage external strain gauge external strand tie beam