The draught fan is characterized in that the motor shaft fixed with the impeller inducer passes through a plane frame to be fixed with the impeller inducer again.

其特征是同风叶相固定的电机轴穿过平面机座 再同风叶相固定；

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Firstly, this paper introduces the realize process of optimal sensor placement in a plane frame structure with model analysis result using finite element software ANSYS.

首先利用平面框架结构的模型实验，借助有限元软件ANSYS，利用模态分析结果，实现了基于有限元理论的传感器优化布置。

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Tom has a frame their own small plane.

汤姆有一架自己的小型飞机。

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When you have a velocity in the moving plane frame and you want to find the velocity on the ground, you should add to every object in the plane the velocity of the plane with respect to the ground.

当你在运动的飞机上运动,然后你想找到相对于地面的速度,你就应该给每个物体加上,飞机相对于地面的速度

耶鲁公开课 - 基础物理课程节选

The plane represented a big bet on new technology for Boeing: The plane's lightweight frame was to be built using mostly carbon-fiber composites, and it was to have an enhanced electrical system to power more systems and use less fuel than other jets.

WSJ: The Two Men Behind the 787