早产早期破水
preterm premature rupture of membranes
不明原因早期自然流产
early unexplained spontaneous abortion
产褥早期
earlier stage of childbed
高危阈前期早产儿视网膜病变
high-risk pre-threshold retinopathy of prematurity
进展期早产儿视网膜病变
advanced retinopathy of prematurity
孕早期产前诊断
First trimester prenatal diagnosis
早期产蛋性状
early egg production traits
早期产-后出血
early postpartum hemorrhage
早期丰产栽培
early fruiting and high yield cultivation
早期复发性自然流产
early recurrent spontaneous abortion