These machines can change their operations based on traffic volume, number of subscribers or devices that are being connected, or on the number of services that are being used.

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An interim solution involves setting up high-volume spay-and-neuter clinics that can do dozens of operations a day for a fraction of what a full-service vet charges.

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Restricted to lower-volume airports, contract towers nonetheless handle 28 percent of all domestic airport operations.

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Greifeld aims to use that system to push the Philly operations, now the third-largest U.S. options exchange by volume (17% of all trades), into new markets, such as the one for interest rate swaps.

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In that same year, Cultiba was the only producer and distributor of beverages in Mexico with nationwide operations and was the country's second-largest beverage company based on combined sales volume of soft drinks and water.

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