preparation act预备行为
preparationn.准备;预备;配制
Preparation of the buckwheat icecream苦荞冰淇淋的研制
preparation and determination methods制备和检测
Preparation of new hydrophobic silica新型疏水二氧化硅的制备
Preparation of sheep placenta peptide羊胎盘肽的研制
preparation works before construction施工准备工作
preparation of cash distribution plan现金分配计划的编制
Preparation of fermented meaty flavor发酵型肉味香精的研制
Preparation of Distinctive Ice Creams特色冰淇淋的研制