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Despite the complicated geology of the area, this bridge was completed in just five years. Meanwhile, a combination of various technologies were featured, including smart concrete for automatic even flow, smart checkup and data recording on bridge conditions, as well as Cloud Health Keeper to detect problems and send out alerts when necessary.

Depleted reservoir storage has a lower unit construction cost to operational volume and large capacity, but it requires a large amount of pre-injected natural gas (cushion gas) to maintain the reservoir above operational pressure. Salt cavern storage, on the other hand, requires a long construction period using water to dissolve underground rock salt to create storage space, creating a higher unit construction cost to operational volume, but a limited amount of cushion gas requirement, higher turnover and recoverable cushion gas, he said.

Dennis Davin, secretary of the Pennsylvania Department of Community and Economic Development.

Democrats opposed the request, kicking off the five-week standoff that resulted not only in reduced economic activity and hardship for federal workers, but delays at airports and closures of national parks.

Despite oil demand rising 5.5 percent year-on-year to 11.77 million barrels per day in 2017, oil consumption, including gasoline and diesel, is expected to fall gradually over the next five to seven years, as China focuses more on energy efficiency and quality.