文档介绍：several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate size. Per-2~3 measuremenr measurement, General in iron angle code bit at measurement level points grid errors, specific method is from baseline to methyl vertical box center line distance for a,, to b vertical box distance for b, list can measured2
实用文档
several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate size. Per-2~3 measurement, such as proceeds of c values are equal and equal to the design value, then the vertical installation accurate. For example a, b, and c valueswhile on horizontal vertical errors for measurement, General in iron angle code bit at measurement level points grid errors, specific method is from baseline to methyl vertical box center line distance for a,, to b vertical box distance for b, list can measured
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3、气候
衡阳县地处大陆性中亚热带季风湿润气候区，四季分明。春季气温一般在10℃以上，期间冷暖交替频繁，骤冷暴热，气温多变，多阴雨。夏季气温通常在22℃以上，多东南风，历年小暑前后雨季结束，常出现高温低湿“火南风”天气。秋季气温一般在10℃以上，冬季气温通常在10℃以下，冬季盛行偏北风，多阴雨，间有雪、冰、冻，严寒期短。
热量充足，℃。，，年平均无霜期289天，℃。雨季、旱季明显，。春夏降水量多于秋冬。雨季降水量占全年的45%；旱季降水量只占全年的10%。多年平均相对湿度为79%。
盛夏初秋，受副热带高气压的控制，降雨量很少，只占全年的10%，%，所以易发干旱。春末夏初降雨量占全年的45%，且多暴雨，所以常造成洪涝。除旱灾、水灾外，也发生过风灾和冰冻灾害，但不常见。
4、自然资源
（1）土地资源
2003年，。，%，、、、、、。
several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate size. Per-2~3 measurement, such as proceeds of c values are equal and equal to the design value, then the vertical installation accurate. For example a, b, and c valueswhile on horizontal vertical errors for measurement, General in iron angle code bit at measurement level points grid errors, specific method is from baseline to methyl vertical box center line distance for a,, to b vertical box distance fo