This is because the tremendous heat produced from a nuclear blast causes an up-draft of air that forms the familiar mushroom cloud.
这是因为核爆产生的大量的热能会把空气往上吸入，形成令人熟知的蘑菇云状。
The paper provides the causes produced negative pressure air from water pump system, approaches its bad effect ion on the running state of water pump, puts forward the measures to eliminate them.
提出水泵系统负压空气产生的原因，并探讨其对水泵运行状态的不良影响，提出消除影响的措施。
The paper provides the causes produced negative pressure air from water pump system, approaches its bad effect ion on the running state of water pump, puts forward the measures to eliminate them.
提出水泵系统负压空气产生的原因，并探讨其对水泵运行状态的不良影响，提出消除影响的措施。
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