Shuttle Endeavour is set to launch April 19 with the $2 billion Alpha Magnetic Spectrometer particle detector.

奋进号航天飞机计划将于四月19号升空，携带价值20亿美元的阿尔法磁谱仪粒子探测器。

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The cosmic ray particle physics detector was carried to the International Space Station on the final flight of the space shuttle Endeavour and installed under NASA direction.

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