发爆炸声

District police commander Aristides Cabral said an explosion was reportedly heard before fire swept through the building.

该区警局一负责人告诉记者，在大火发生前，有人听到了剧烈的爆炸声，他说："大楼里面传来爆炸声，一楼楼面坍塌，数十人被压在了地下。"

At first, out of a salvo of torpedoes, only one hit the bow and caused a muffled explosion.

最初，在连串齐发的鱼雷中，只有一个击中了舰首，引起了低沉的爆炸声。

At first, out of a salvo of torpedo es, only one hit the bow and caused a muffled explosion

最初，在连串齐发的鱼雷中，只有一个击中了舰首，引起了低沉的爆炸声。

District police commander Aristides Cabral said an explosion was reportedly heard before fire swept through the building.

该区警局一负责人告诉记者，在大火发生前，有人听到了剧烈的爆炸声，他说：&大楼里面传来爆炸声，一楼楼面坍塌，数十人被压在了地下。&

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。