harbin is the capital of heilongjiang province, with a population of 5.3 million and covering an area of 18,000 square kilometers.

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located in eastern songnen plain, it\'s a rolling land with low hills, and shallow valleys and crossed by the songhua river. it has a semi-humid temperate climate with an annual average temperature of 3.5 degree celsius, rainfall of 530 millimeters and a frost-free period of 140 days. its mineral resources are coal, quartzite, marble, copper, lead and zinc etc.

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harbin is one of china\'s key industrial bases, with machine building industry as its main stay. foodstuff, petroleum, chemicals and textiles are its important prop-ups. the output value of its pharmaceutical industry ranks first in china. the main agricultural products are wheat, soybean, beet, flax, tobacco, poultry, etc. it\'s among china\'s major beet growing areas.

harbin is the commercial center of heilongjiang province as well as the communication hub in the northern part of north-east china, with a well-developed railway and highway network. it has regular air links with over 30 cities at home and abroad. the songhua river is an important waterway for shipping.