Complex sentence: The queues were removed from Dungan Chinese Muslim prisoners and then sold or given to various owners, some of them escaped to Russian territory where they were repatriated back to China and the accounts of their captures were recorded in Chinese records.
Split into simpler sentences: The queues were removed from Dungan Chinese Muslim prisoners and then sold or given away. Some of them escaped to Russian territory where they were repatriated back to China, and the accounts of their captures were recorded in Chinese records.