Final answer:
The central idea supported by the details from the excerpt is that present-day experts hope to find a more complete copy of the hieroglyphic inscription in Egypt.
Step-by-step explanation:
The central idea supported by the details from the excerpt is that 'New translations of the hieroglyphic text were made in France and Germany, and an excellent English one appeared in 1904. A few sections still remain unclear, though. This makes present-day experts hope that an even more complete copy of the hieroglyphic inscription may yet be found, somewhere in Egypt.'
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