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Inventories, Net - Summary of Inventories (Detail) ¥ in Thousands, $ in Thousands | Dec. 31, 2024 CNY (¥) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 CNY (¥)
--- | --- | --- | ---
Inventory, Work in Process and Raw Materials [Abstract] |  |  |
Raw materials | ¥ 32,827 | $ 4,497 | ¥ 42,703
Work in progress | 6,617 | 907 | 5,258
Finished goods | 14,319 | 1,962 | 21,059
Contract cost | 8,862 | 1,214 | 0
Inventory, Net | ¥ 62,625 | $ 8,580 | ¥ 69,020

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