表明内源排泄物中代谢粪氮的能值与尿的能值不同，粪中氮的能值高于尿中氮的能值。
It indicated that energy of endogenous nitrogen was different to that of uric acid, the energy of endogenous nitrogen was higher.
表明内源排泄物中代谢粪氮的能值与尿的能值不同，粪中氮的能值高于尿中氮的能值。
It indicated that energy of endogenous nitrogen was different to that of uric acid, the energy of endogenous nitrogen was higher.
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