The US turned the YF-12 into a reconnaissance plane.
美国最终把YF-12改成了侦察机。
To study teratogenic effects of YF 1 germicide in mice.
探讨YF1杀菌剂对小鼠的致畸作用。
The effort involved the design, construction and flight testing of two YF-22 prototype aircraft.
努力参与设计，建造和飞行试验两y f - 22原型机。
Based on the experimental investigation of the flotation collector, the YF-01 collector has been developed.
经过大量的浮选捕收剂的试验研究工作，研制出的新型萤石浮选YF - 01捕收剂。
YF series cylindric thrust meter is used for thrust (pressure) measurement. The measurement range is 10%-100% of the load limit.
本测力计供计量推力(压力)用，测量计的测量范围为10%极限载荷至100%极限载荷。
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。
The study shows that both of energy absorption and anti-grounding abilities of YF double bottom structure are evidently better than that of routine structure.
研究表明，YF双层底结构比原结构具有更大的吸能能力和抗搁浅能力。
In order to discover the problems of English teaching of lower grades in primary school and analyze the causes, the study is made on the basis of YF primary school.
建构主义学习理论是本文的理论基础，小学生的心理特点则为教学设计的构建提供了心理学依据，在此基础上本文提出了YF小学低段英语的教学设计。
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)。
As a veteran of advanced aircraft development programs, he served as a US air Force test pilot on the F-117 stealth fighter and as a General Dynamics test pilot for the YF-22.
做为高级飞机研究项目的老兵，他以美国空军试飞员的身份参与F- 117隐形战斗机的研制并且是YF - 22的常规动力学的试飞员。
The country has requested support from the International Coordinating Group on yellow fever vaccine Provision (YF-ICG), which manages the global emergency stockpile of yellow fever vaccine.
该国已经要求黄热病疫苗供应国际协调小组(YF -ICG)提供支持，该小组管理全球黄热病疫苗应急储备。
The country has requested support from the International Coordinating Group on yellow fever vaccine Provision (YF-ICG), which manages the global emergency stockpile of yellow fever vaccine.
该国已经要求黄热病疫苗供应国际协调小组(YF -ICG)提供支持，该小组管理全球黄热病疫苗应急储备。
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