萨拉蒙还强调当前的美国国家航空航天局任务在暗能量测量方面发挥了重要作用。

Salamon also stressed that current NASA missions have already played a key role in measuring dark energy.

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正好处于淡季，所以，阿联酋航空公司的从北京到达累斯萨拉姆的往返机票才。

After visited the web address of Emirates, we found out the good price of the tickets, which can fly from Beijing to Dar er Salaam.

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