F draft sill is an integrated casting component with thin wall and inner empty box, and irregular deformations like torsion and bending occur easily.

牵引梁为薄壁、内空箱体整体铸造构件，铸件容易出现搓扭和弯曲无规律性变形。

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Working closely with the Ford Motor Company, we purchase the individual component parts of an F-350 pickup box.

紧密合作，福特汽车公司，我们购买个人的组成部分f - 350敞蓬小型载货盒子。

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Along the way we add heavy gauge steel bed supports that strengthen the box to handle the higher payload and towing capacities of the F-450 and F-550.

在前进的道路上我们添加沉重钢床上的支持，加强框来处理更高的有效载荷和拖曳设备性能的分析，F - 450 F - 550。

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Despite the average grade, with reviews so much stronger than most films aimed at teens, and an encouraging 18 percent bump on Saturday (which suggests positive word-of-mouth), "Chronicle" might not plummet at the box office the way "F" graded "The Devil Inside" did a few weeks ago.

CNN: STORY HIGHLIGHTS

The other day I was riding the F train home when a group of teenagers with a boom box scooted me out of the way.

WSJ: Message for the MTA

The space also features an iconic box with mirror accents and an ultra suede interior to showcase the new LS F SPORT.

FORBES: Detroit Auto Show Booths Show Biz is Back