The paths of incidence and reflection are in a plane normal to the surface.

入射和反射的路径都在与表面垂直的平面内。

youdao

A comprehensive study of free vibration, buckling and bending of anisotropic simply-supported skew plates subjected to in-plane normal and shear forces is conducted.

对简支各向异性平行四边形板在面内张力和剪力作用下自由振动、屈曲和弯曲问题作了全面的研究。

youdao

The plane had to deviate from its normal flight path.

那架飞机只好偏离正常的航线。

youdao

China's Foreign Ministry spokesman Hong Lei, however, said during a regular news briefing that the plane's flight was "completely normal".

BBC: Japan accuses China of airspace intrusion over islands

Log books indicate a mechanic certified the plane had been tested and "throughout its normal range of speeds" and maneuvers.

CNN: NTSB: Pilot overwhelmed by g-forces in Reno crash

He said the plane did not crash land but came to a normal halt after the blow out.

BBC: Tyre blowout closes Manchester Airport