The key factors of sugar accumulation are of main light temperature accumulation and daily range of temperature.
影响糖份累积的关键气象因子主要是光温积和气温日较差。
The snow cover might affect the daily maximum ground temperature, daily minimum ground temperature and the daily range of the ground temperature.
积雪可能对土壤日最高温、日最低温和日温差有较大影响。
The long-term variation characteristics of annual mean air temperature, annual mean maximum and minimum air temperature and mean daily range from 1932 to 2002 in Lanzhou are analyzed.
分析了兰州1932～ 2 0 0 2年年平均气温、年平均最高和最低气温及年平均气温日较差的气候变化特征。
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