词汇	social relief valve
释义	social relief valve 社会安全阀
随便看	directional gyrodg Directional Gyro Indicator directional gyro mode directional gyroscope Directional Gyroscope Position Directional Gyro Unit directional hearing directional HF antenna Directional highly lymphatic metas-tasis Directional hlasting directional hole directional homing directional hydrophone directional hypothesis directional illumination Directional illumination analysis directional illusion directional imag directional image directional image transfer constant directional impedance directional impedance protection directional impedance relay directional impulse response directional inclination