妊娠中期 meaning in Chinese

mid trimester of pregnancy
second trimester of pregnancy

This being said , flower ( 4 ) argues that fetal sentience is not possible until mid - gestation
研究认为胎儿感觉只有到妊娠中期才有可能出现。
These fetal kidneys ( from a gestation estimated at 25 weeks in the second trimester ) demonstrate a normal cut surface . note the pelvis and calyces . note the well - defined corticomedullary junctions
这是妊娠中期，估计为25周胎儿肾。切面正常，可见肾盂、肾盏，皮质、髓质分界清楚。
In contrast to murine studies , studies of human hscs have relied on a number of in vitro assays that identify cells with the capacity to generate hematopoietic progenitors in long - term culture and to differentiation into multiple hematopoietic lineages . recently , two elegant animal models that enable the in vivo measurement of human hscs marrow repopulating potential have been developed . one is the sheep in utero transplantation system in which human hematopoietic progenitor cells are transferred into the sheep fetus in utero before the development of the ovine immune system
早在80年代中期， zanjani等就利用胚胎期免疫系统发育不完善，将人的造血干细胞移植到妊娠中期胚羊腹腔内，成功地建立了人胎羊造血干细胞嵌合体移植模型，并以此实验模型作为体内检测人造血干细胞和人骨髓间充质干细胞多向分化潜能的方法。