The US turned the YF-12 into a reconnaissance plane.
美国最终把YF-12改成了侦察机。
So the US turned the YF-12 into a reconnaissance plane (the amazing SR-71 Blackbird, which remained in service through 1998 and could traverse the US coast to coast in 1 hour).
因此，美国最终把YF - 12改成了侦察机(即令人赞叹的SR - 71黑鸟。它可以在一个小时内横穿美国东西海岸，直到1998年才退役)。
The samples were sent for laboratory analysis at the Institut Pasteur, Dakar and confirmed by YF seroneutralization, a highly specific test for yellow fever.
样本送往达喀尔市巴斯德研究所进行实验室分析，并通过YF血清中和试验（一项高针对性黄热病检测方法）予以证实。
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