单词	不纯物--杂质
释义	不纯物；杂质impurity
随便看	elementary direction characteristics elementary divisor elementary divisor ideal elementary education elementary educational branch elementary education branch elementary [electric] charge elementary electric charge elementary error elementary event elementary exanthem elementary exanthem--primary exanthem elementary excitation elementary field elementary filaments elementary file elementary flight elementary flight maneuver elementary flight--maneuver elementary frequency elementary function elementary geometry elementary group elementary homomorphism elementary individual control