求翻译：自2002年1月1日起至2010年底，本公司销售自行开发生产的软件产品，按17%的法定税率征收增值税后，对增值税实际税负超过3%的部分实行即征即退政策是什么意思？

From January 1, 2002 until the end of 2010, the Company sold its own development and production of software products, value-added tax by the statutory tax rate of 17%, more than 3% of actual VAT implementation of Jizhengjitui policy

Since January 1, 2002 to end of 2010, the company's sales self-developed software product, by 17 per cent of the statutory tax rate levied on the value added tax, VAT actual tax burden more than 3% of the part of the recruitment that is policy

Got up from January 1, 2002 to 2010 year's end, this company sold the voluntarily development production the software product, after 17% legal tax rate collection increment duty, surpassed 3% part to the increment duty actual tax burden to implement namely drafts namely draws back the policy

As of January 1, 2002 until the end of 2010, sales development and production of its own software products of our company, after you press the 17% statutory tax rate of value added tax, VAT 3% part of the implementation of the actual tax burden than levy return policy

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