A method for improving the ability of JZXC 480 track circuit once adjusting was presented. The method is to in crease the ratio of release voltage and work voltage of track relay.

为提高JZXC - 480型轨道电路一次调整的能力，提出改变轨道继电器返还系数的方法，并进行计算机仿真计算。

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China won the women's 3, 000-meter relay short track speedskating final Wednesday night after four-time defending champion South Korea was disqualified.

中国队战胜了卫冕冠军韩国队，夺得女子短道速滑3000米接力金牌，韩国队成绩无效。

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China Wins Gold in Short Track 3000-meter Relay .

中国队夺得短道速滑女子3000米接力金牌。

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Owens dispelled Hitler's theories on the track, winning gold medals in the 100 and 200 meters, 4x100-meter relay and long jump.

VOA: standard.2009.08.19

Despite lying on the track for several minutes before receiving medical attention, Okoro returned to the track later to anchor the relay team alongside Donna Fraser, Kim Wall and Vicky Barr to an impressive silver.

BBC: GB end Euros with relay silvers

An avowed distance runner, Goluskin is also known for his speed on the track, having participated in a world-record-setting 4x800 meter relay team for men aged 70-79 at the 168th street Armory in March.

WSJ: A 50-Mile Run Debuts for the Mohonk

"I was the last one on the track, " said Rodney Martin, who ran the first leg of the relay for the U.S. team.

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