词汇	fetal stethoscope
释义	fetal stethoscope 胎儿听诊器
随便看	velocity mismatch velocity mobility velocity model velocity model amending velocity model building velocity modeling velocity modulated velocity modulated amplifier velocity-modulated amplifier velocity modulated beam velocity-modulated beam velocity modulated electron beam velocity-modulated electron beam velocity modulated hydraulic coupler velocity modulated oscillator velocity-modulated oscillator velocity-modulated osillator velocity modulated tube velocity-modulated tube velocity modulated valve velocity-modulated valve velocity-modulating effect velocity modulating generator velocity-modulating generator velocity-modulation