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Accounts Receivable, Net (Tables) | 12 Months Ended
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Dec. 31, 2021
Receivables [Abstract] |
Summary of Accounts Receivables And Related Allowance For Doubtful Accounts | Accounts receivable and the related allowance for doubtful accounts are summarized as follows:
|  | As of December 31, |
|  | 2020 |  |  | 2021 |
|  | RMB |  |  | RMB |  |  | US$ |
Accounts receivable |  |  | 141,594,170 |  |  |  | 223,544,396 |  |  |  | 35,078,994 |
Less: Allowance for doubtful accounts |  |  | — |  |  |  | — |  |  |  | — |
Accounts receivable, net |  |  | 141,594,170 |  |  |  | 223,544,396 |  |  |  | 35,078,994 |

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- References No definition available. + Details
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