晚震旦世—早寒武世
late sinian-early cambrian
宫内早早孕
Very early intrauterine pregnancy
宫外早早孕
Very early ectopic pregnancy
古新世－始新世早期火山岩
Paleocene-Early Eocene volcanic rocks
胶体金早早孕检测试纸
Colloidal gold test paper
全新世早中期
Early and Middle Holocene
上新世—早更新世
Pliocene-early Pleistocene
晚白垩世—早第三纪
Late Cretaceous to Early Paleogene
晚白垩世—早古新世
late Cretaceous-early Paleogene
晚二叠世—早三叠世
late Permian-early Triassic
晚古新世－早渐新世
late paleocene-early oligocene
晚三叠世－早白垩世
late triassic-early cretaceous