In the third chapter, the synergistic effect of expandable graphite with Ammonium polyphosphate in the polyethylene has been studied. 第三章研究了以可膨脹石墨與聚磷酸銨復配構成的新型膨脹型阻燃劑在高密度聚乙烯中的作用。
The 1 000-grain weight and seed setting rate improved with the increase of diammonium phosphate. 增加磷酸二銨的施用量，水稻的千粒重和結實(shí)率也隨之提高。
The effects of diammonium phosphate on the rice yield in whitened soil in Hanshan were discussed. 摘要探討了在含山縣淀白土田上施用磷酸二銨對水稻產(chǎn)量的影響。
