At infinity, there's no stored potential energy, and it drops off more and more negative as one over r.

在无限远处，没有储存的势能，并且它向负方向减少，当距离超过R时。

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Far more inexplicable is the decision to withdraw the Sentinel R.1 Airborne STand Off Radar (ASTOR) from service when it is' no longer required to support operations in Afghanistan '.

更令人费解的是让“哨兵”R . 1机载远程雷达(ASTOR)在“不再需要支持在阿富汗的行动”时退出现役的决定。

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Plan B is to try to peel off moderate senators such as Bob Corker (R-Tenn.), Olympia Snowe (R-Maine), and Scott Brown (R-Mass.) to reach the 67-vote threshold.

备用计划是试图游说中立派参议院如鲍勃•考克（田纳西共和党）、奥林•斯诺（缅因州共和党）和斯科特•布朗（麻省共和党）等以达到67票的批准门槛。

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To enable drivers to control its functions without taking their eyes off the road, R-LINK features a large 18cm tactile display, steering wheel-mounted controls and speech recognition.

ENGADGET: Renault debuts R-Link, an in-dash Android system with app market

But the idea was rejected by other more hard-line Republicans, including Rep. Dick Armey, R-Texas, who said workers should stay off the job until a balanced budget is passed and signed by the president.

CNN: Budget impasse continues amid mix of pessimism and hope

But Toronto's major sports teams draw the bulk of the fans. (The Raptors, incidentally, will miss the playoffs for the fifth straight year.) Although the Leafs remain supreme interest-wise, the city was captivated by the Jays' off-season bonanza, which included adding Reyes and pitchers R.

WSJ: Toronto Is Back (Sort of)