Characteristics of temperature change and atmospheric circulation were analyzed in hot summer of 1999 and in cool summer of 2003 in Northern China.
分析了1999年与2003年我国北方地区夏季气温的变化特点和同期大气环流主要特征。
Results show that the Plateau summer monsoon, the summer temperature and precipitation in the upper reach of Changjiang river valley exist obvious change in phase.
结果表明，高原夏季风、长江上游夏季气温和降水均存在明显的阶段性变化特征。
The change of temperature has much effect on the coal tar, winter easy embrittlement, summer is easy to soften.
温度的变化对煤焦沥青的影响很大，冬季容易脆裂，夏季容易软化。
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