过去 – phrases

Chinese	English
在过去的几十年里、人们对飞石现象进行了大量的实验研究和理论研究	Much experimental and theoretical work about flyrock phenomena has been performed in the past decades
生命周期在过去的十年、是用以量化所有环境影响的标准方法、涉及产品的整个生命周期和过程	L-Cycle Assessment LCA has been the standard methodology far quantifying all environmental impacts associated with the entire life cycle of products and processes for over a decade
过去的十年、为了让二氧化碳在大气中的含量稳定在550 * 10⁻⁶、有人呼吁采取极端的行动	Calls for drastic action have bee made within the last decade in order to achieve stabilization of CO₂ levels at around 550 ppm twice the preindustrial era levels。