NOT ONLY HAS CONSERVATION of energy been empirically validated many times over, but scientists also have good theoretical reasons to believe it.
不仅仅是因为能量守恒被实验无数次地证实过，科学家信赖它也是有理论依据的。
He appears to have Shared for a time AJ Ayer's assertion that the only significant propositions are those that can be empirically or scientifically verified.
曾经有个时期，他似乎赞同艾耶尔的观点，只有那些能够被经验和科学证明的观点才是真正重要的观点。
He appears to have Shared for a time AJ Ayer's assertion that the only significant propositions are those that can be empirically or scientifically verified.
曾经有个时期，他似乎赞同艾耶尔的观点，只有那些能够被经验和科学证明的观点才是真正重要的观点。
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