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Stellar nucleosynthesis yield is a vital factor of galactic chemical evolution model. With different yields, various evolutionary behavior of elements can be predicted, hence different scenarios of galactic chemical evolution can be shown. Investigators calculated different yields adopting different parameters of stellar evolution and nucleosynthesis. The corresponding parameters and the resulting yields of elements are compared for low-, intermediate-mass stars and massive stars, so that these analyses can provide valuable information and guidance to stellar nucleosynthesis and galactic chemical evolution studies.