The meaning of the term'Qingsui'in records related to Duke Wen of Jin had four viewpoints from ancient to modern times:'funeral theory','six tunnels theory','flag object theory',and'ceremony theory'.The existence of'Wang Zhang'in tombs is key to determining the meaning of'Qingsui'.Archaeological research has shown that royal tombs from the late Shang Dynasty to the late Western Han Dynasty are all vertical earth-pit tombs with a'ya'(亚)-shaped layout and four entry ramps,characteristic of the highest rank.It can be seen that'Qingsui'refers to a request to add additional tomb passages,changing the original'Zhong'(中)character shape to a'ya'(亚)character-shaped royal tomb.
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