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为了得到风味绝佳的咖啡,NASA 将派遣一架无人驾驶的太阳能飞机到夏威夷一个种植园上空以便让种植者准确地知道何时才是采摘咖啡豆的最佳时机。NASA 在一份
In order to get a great coffee, NASA will send an unmanned solar aircraft over a plantation in Hawaii to give growers exactly when it is the best time to pick their beans. NASA in a