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... Daqiang were both startled, their gazes involuntarily falling upon Lin Chuan.
Lin Chuan, however, shook his head, "To be precise, there is a small gap in between; if it was completely buried in soil, it would not achieve the purpose of transmitting sound. Even if there were sounds, the waves would not be stable enough."
He Song was the first to raise a question,
"Lin, your conjecture is reasonable and well-founded, but I want to ask, we have checked thoroughly, and we al ...
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