A | 资料图该政府机构计划建立一个大型地下管道系统，从而将圣维森特水库跟建在附近峡谷中约1100英尺的新水库连接起来。当太阳在天空中高高挂起时，加州的大型太阳能发电系统会将把水抽到上面的水库然后储存起来供以后使用。 (ECNS) -- An 11.6-kilometer offshore steel trestle bridge, the longest of its kind currently under construction in China, was fully connected on Tuesday in Dalian, located in China's northeastern Liaoning Province. The steel trestle bridge is a key supporting facility for the Dalian Changhai Bridge project. Changhai County, China's only island border county, has long relied on maritime transport. However, ferry services are suspended for more than 60 days each year due to tides, strong winds and heavy fog, while round-the-clock navigation is unavailable even when services are operating. These limitations have restricted residents' mobility and hindered local economic development. The Changhai Bridge project stretches 25.5 kilometers across the Lichangshan Strait, linking Dachangshan Island in Changhai County with the mainland at Pikou Port in Pulandian District. Once completed, the bridge is expected to end the county's long-standing dependence on maritime transport. Construction in the Yellow Sea has posed significant challenges due to frequent changes in wind, waves and tides, as well as shallow waters that prevent conventional construction vessels from operating. To overcome these difficulties, the project team built the steel trestle bridge as a key support facility. Serving as the main transport route for construction materials, heavy machinery and personnel, it acts as a "lifeline" for offshore construction, according to the project team. Ni Jiaming, project manager for the third section of the Changhai Bridge project under China State Construction Engineering Corporation (CSCEC), said the steel trestle bridge required 3,431 piles and 67,000 metric tons of steel. Construction was completed in 423 days, 10 days ahead of schedule. Gong Baokai, deputy chief commander of the Dalian Changhai Bridge project under China State Construction Eighth Engineering Division, said completion of the trestle bridge has helped overcome construction difficulties in shallow waters, significantly improving the efficiency of transporting materials and personnel while reducing offshore construction risks. Its connection also marks the southern section of the Changhai Bridge project entering the main foundation construction phase. The Changhai Bridge is expected to open to traffic in 2029. (By Tang Yuxian) 
。之后，这些水电池将在太阳下山时启动并产生更多的电力。当水从作为“水电池”的上层水库中释放出来时，其将驱动涡轮机，以提供500兆瓦的电力约8小时。NPR说，这足以为约13万个标准家庭提供电力。这是一种有趣的方式，它可以利用太阳能的好处但无需依赖恒定的阳光，并且这也是一种可以在其他有大湖的地方使用的方式。水电池至少在十年内不会启动和运行，但有关当局表示，这可能会永远改变圣地亚哥为其人民的家园提供电力的方式。该计划在最近的热浪中取得了成果，看到加州的许多地方在夜间挣扎以满足电力需求。然而在白天，电网的电力负荷过大，系统无法全部利用它。这些新的水电池将允许额外的电力被储存，然后在以后最需要的时候使用。
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