prds

prds

 英

  • 网络减温减压器;呼吸道疾病;合成指数

例句

Complexes of phenolic resin and diazonium salt (PR-DS)or diazo resin(PR-DR) were prepared in aqueous solution.

溶液制备酚醛树脂重氮PRDS树脂PRDR复合物