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Bank Loans - Schedule of Principal Payments on Long-Term Borrowings (Details) - Dec. 31, 2021	CNY (¥)	USD ($)
Principal Payments on Long-Term Borrowings
2022	¥ 50,200,000	$ 7,877,475
2023	141,800,000	22,251,514
2024	160,000,000	25,107,492
Total	¥ 352,000,000	$ 55,236,481

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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