1.The open cell polyurethane-silicon plastic was created for use in NASA aircraft seats to lessen impact during landings.
结构疏松的聚亚安酯硅塑料最早是为NASA的航天器的座椅开发的,目的是减轻飞船在起飞时产生的冲击。
2.lessen impact, likelihood, risk of sth
减少某事物的影响、可能性、冒险性