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1·The US turned the YF-12 into a reconnaissance plane.

美国最终把YF-12改成了侦察机。

2·To study teratogenic effects of YF 1 germicide in mice.

探讨YF 1杀菌剂对小鼠的致畸作用。

3·Yf you turn and walk away, your forever friend follows;

当你转身走开时，真正的朋友将跟随你而去；

4·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。

5·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。

6·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。

7·GF vs WF had difference in three genes, and the G gene had epistatic effect, one W was enough to restrain the express of YF and WF.

绿色对白色有三对基因差异，其中绿色基因有显性上位作用，只需一个绿色基因G存在，即可抑制淡黄色与白色性状的表达。

8·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。

9·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。

10·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。