由科技引领的深刻变革，正在重新定义"地利"的内涵。今日的中国农业，不再局限于土壤自身的天然肥力、特定的地形条件、有限的水源供给以及多变的气候状况，而是借助技术赋能，突破自然条件制约，重塑中国农业格局。

The objective is to provide guidance for pregnant women and obstetric care and exercise professionals on prenatal physical activity. The outcomes evaluated were maternal, fetal or neonatal morbidity, ...