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XPS结果表明，钯几乎全部以零价态存在。
The results of XPS show that palladium was almost in zero valence state.
结果表明，超声波和零价铁都可使对硝基氯苯得到降解。
The results show that: both ultrasound and zero-valent iron can degrade P-nitrochlorobenzene.
该催化剂的催化加氢活性与零价钯的外层价电子密度有关。
The catalytic activity for hydrogenation was related to outer layer valence electron density of Pd.
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