三峡水库运行调度受防洪要求控制，水库必须在汛前泄降。
The reservoir operation is controlled by flood prevention demanding, and the reservoir level must be descended before flood season.
水库泄降对防护堤的应力和沉降分布也有影响，应力和沉降随着水库泄降而增大。
The reservoir drawdown also affects stress and settlement distribution of the protection embankment, and both the stress and settlement progressively increase with the reservoir level drops.
公司产品涉及降尘和灭火系统、流量和压力监测(机械式和电子)、减压和泄压阀、过滤系统。
These products include Dust and Fire suppression systems, Flow and pressure monitoring both Machanical and Electronic, pressure reducing and relief valves, Filtration systems.
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