Diurnal Temperature Difference: The difference between daytime and nighttime temperatures, which can affect the speed of ripening and grape quality. Shifts can be considerable; parts of Napa Valley regularly experience a 40-degree difference.
昼夜温差： 能影响葡萄成熟速度和品质的昼夜温度差异。这种差异可以是相当大的；纳帕谷的部分地区定期出现40度的温度差异。
