An implantation can occur only under certain proper conditions.植入只有在某些合适的条件下才能够发生.Hypophysectomy before implantation terminates pregnancy and after the 44 th day of gestation causes abortion in goat.山羊与附植前切除下立脑可使妊娠终止,而在妊...
Shortly after implantation the blastocyst wall, the trophoblast, consists of two layers of cells.植入之后不久,胚囊的壁, 即滋养细胞含有两层细胞.Microchips are convenient, safe, and reliable. Implantation is simple and routine.微芯片是方便 、 安全和可靠的....
那是个偏心轮.That is an eccentric wheel.采用偏心轮和弹簧结构, 研制了口腔修复体疲劳寿命测试机.Using eccentric wheel and spring, an instrument was developed in this study.其整个系统主要由偏心轮夹紧机构、液压泵站和单片机控制系统组成.The whole system mainly consists of eccentric cam h...