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REVENUE FROM CONTRACTS WITH CUSTOMERS (Details 1) ¥ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2022 USD ($) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2021 CNY (¥)
Revenue From Contract With Customers |  |  |
Within one year | $ 2,378 | ¥ 16,406 | ¥ 17,774
After one year | 25,034 | 172,683 | 183,114
Amounts expected in Revenues | $ 27,412 | ¥ 189,089 | ¥ 200,888

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