胚期embryonic stage
迭代三阶段最小平方估计iterative three-stage least squares estimate【数】;iterative three-stage LSE【数】
红细胞内期erythrocytic stage
神经胚期neurula stage, neurula period
胎儿期FetalStage
双极谐波齿轮传动two-stage harmonic gear drive【机】
多线期polytene stage
两阶段预测法two-stage prediction method【金融】