词汇	bell signal
释义	bell signal 振铃信号
随便看	absolute ambient temperature absolute amenorrhea absolute amnesty absolute amount absolute amount of skewness absolute amounts absolute Ampere absolute ampere cgs absolute alcohol Absolute alcohol injection absolute alcohols absolute aleohol absolute algebraic number field absolute alpha counting absolute-ampere determination absolute amplification absolute amplifier absolute amplitude absolute anaerobe absolute analysis Absolute anchorage absolute anchor point absolute and exchangeable value absolute and relative absolute and relative of contradiction