“prenatal mortality rate”的概念、定义、翻译、参考文献-科学参考

单词	prenatal mortality rate
释义	prenatal mortality rate Encyclopedia 医学人口统计指标释 prenatal mortality rate围生儿死亡率围生期的胎儿和新生儿死亡数（死胎、死产）占死亡数与活产数之和的比。
随便看	directional differentiation directional distribution directional drilling directional duality directional duality principle directional emitter directional exit sign directional explosive echo ranging directional filter banks directional fragmentation warhead directional gamma-ray radiometer directional gene knock-out (editing) on aquatic animal directionality directionality in translation directional light source directional limit directionally intersected wells directionally solidified columnar superalloy directionally solidified eutectic superalloy directionally solidified superalloy directional machine directional mutation directional partial derivative directional pattern directional pattern of microphone

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