The invention discloses an uninterrupted dual power supply changeover switch, which comprises an encloser, a contact on-off system and a mechanical transmission system.

本发明公开了一种无间断双电源转换开关，包括壳体、触头分合系统、和机械传动 系统；

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The New York State parks system wants to turn off the falls on the American side to replace two 115-year-old stone bridges that allow pedestrians, park vehicles and utilities access to Goat Island.

纽约州公园系统希望关停美国一侧的瀑布，以取代两座有115年历史的石桥，让行人、公园车辆和公共设施可以进入山羊岛。

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It uses a roll-on, roll-off system to transfer containers between trains and ships.

ECONOMIST: Fast container ships

Blizzard has been busy pushing hotfixes onto their on-and-off broken auction house system, in an effort to quell the rage of the unhappy Diablo III community.

FORBES: Diablo III's Real Money Auction House Delayed Once Again

They will be purchased on an as-needed basis off websites and will run on a variety of operating-system-agnostic machines, making Windows less important.

CNN: Brickbats for Bill