According to the surface chemical composition change of the steady state, the surface binding energy ratios between any two elements in the target can be evaluated.
根据稳定态时化学成分的改变，可以推算出靶中任意两元素表面结合能之比。
The main factor influencing the yield of maleic anhydride is the phase composition or oxidation state of vanadium in the catalyst, and is not the BET surface area of the catalyst.
实验结果表明，影响顺酐收率的主要因素是催化剂的相组成及钒的氧化态，而不是催化剂的比表面积。
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