扶养的义务 mutual maintenance support obligation

扶养义务 an obligation to maintain ; [法] duty of maintenance ; [法] duty of support ; maintenance obligation

预防性养护意义 Preventive maintenance significance

信息素养定义 Information Literacy Defined

定义细胞培养基 Defines cell culture medium

子女赡养义务 Child maintenance obligations ; child support obligations

广义营养学 Total Nutrition

疏忽扶养的义务 nonsupport

营养意义 nutritional significance