单词	正常年
释义	正常年 normal year
随便看	differential measurin instrument differential mechanical analysis differential mechanics differential mechanism differential media differential median calibration Differential median theorem differential median theorems differential medium differential medium value theorem differential megnetometer differential melting differentialmelting behaviour differential melting behaviour differential mesh equation differential metacenter differential metals contact corrosion differential meter differential meters differential method differential method for plain area differential method mapping differential method of liquid level measurement differential method of measurement differential method of photogrammetric mapping