In England, authorities stressed that a crew member who developed flu-like symptoms during a flight from Mexico City to Heathrow did not test positive for swine flu.
在英国，官方强调，在墨西哥城飞往希西罗机场的班机航程中有类似感冒症状的乘客事后检测没有发现猪流感阳性反应。
This paper deals with the necessary conditions by which a full stressed design can be found while the area of each member does not vanish.
本文给出了在桁架各杆横截面积不得为零时的实现满应力设计的必要条件。
That horizontal member of the portal frame consists of two longitudinal pre-stressed concrete box type beams overpassing the big span.
两个箱型梁水平构件构成了教室与展区的天花板及地板，并在理论教室和展示区的配置考量下而设计成不同的高度。
That horizontal member of the portal frame consists of two longitudinal pre-stressed concrete box type beams overpassing the big span.
两个箱型梁水平构件构成了教室与展区的天花板及地板，并在理论教室和展示区的配置考量下而设计成不同的高度。
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