primary blast injury 第一类爆炸损伤
primary blast effects 原始爆炸效应
primary leukemic blast 原代白血病细胞
When the primary air blast wave from the explosion strikes the ground another blast wave is produced by reflection.
当爆炸引起的入射冲击波触及地面时，由于波的反射便产生另一冲击波。
The primary factors that influence the heat level and its change direction of the blast furnace have been analyzed.
论文分析了影响高炉炉温水平及炉温走向的主要因素。
When the primary air blast wave from the explosion strikes the ground, another blast wave is produced by reflection.
当爆炸引起的入射冲击波触及地面时，由于波的反射便产生另一冲击波。
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