A theoretical model for nonlinear Lamb mode propagation in a composited layer has been established, based on a partial plane wave approach.

基于导波的部分平面波分析理论，建立了复合固体层中非线性兰姆波的理论模型。

youdao

Remember, partial f, partial x was obtained by y That means I am slicing the graph of f by a plane that is parallel to the x, z plane.

要记得，在这里的fx中,是作为常量保持不变的。，looking，at，the，situation，where，y，is，held，constant。,这是我用一个平行于xz坐标系的平面,横截了f，所得到的图形。

youdao

A new method for analyzing a millimeter H-plane waveguide circulator with a partial height ferrite post is presented.

本文提出一种分析部分高度铁氧体柱毫米波h面波导环行器的新方法。

youdao

The Spanish start-up ChangeYourFlight enables travellers to make requests for partial refunds of plane tickets they know they are not going to use via a free, three-step process.

BBC: New sites let you sell unused trips

Researchers at MIT, led by Dr Mark Drela and tasked by NASA, have come up with a double-wide design: instead of the traditional single cylindrical body, two partial cylinders are joined together with three engines at the back of the plane between the double tail.

BBC: The futurist: Will green aeroplanes take off?