爆炸空气冲击波的研究是弹药等武器作战效能评估的重要依据，也是对矿井爆炸事故的系统安全性进行分析的基础。
The research of explosive shockwave can be significant for the weapon's damage efficiency evaluation, and also important for measuring the system security in mine explosive accidents.
一套新的空气质量评估体系拟把PM 2.5检测值纳入其中。PM 2.5是造成天气阴霾，并能损害人体呼吸系统的微小空气污染物。
A new set of air-quality evaluation standards under discussion is likely to include readings of PM2.5, the tiny airborne pollutants that cause haze and can damage the human respiratory system.
他继续评估新机械系统和空气动力学套件，还在霍根·海姆赛道发车区，做了10分钟的发车练习。
He continued the evaluation of the new mechanical and aero parts but also took part in a 10-minute race start session from the Hockenheim grid.
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