For simplicity, we assume e to be in the x direction and to vary sinusoidally in the y direction . 为简单起见，我们假定E在X方向上，并在Y方向上正弦式地变化。
2.
The case of a harmonic oscillator driven by sinusoidally varying force is an extremely important one in many branches . 在许多领域中受正弦变化力策动的谐振子是一种十分重要的运动。
3.
Inside the film, the field varies sinusoidally and the entire surface-wave mode propagates alone the horizontal z direction . 在薄膜内，场按正弦函数变化，整个表面波模沿水平Z方向传播。
4.
Propagation of vibration wave in cylindrical shell with sinusoidally perturbed wall 波纹管壳结构中振动波的传播
5.
For simplicity , we assume e to be in the x direction and to vary sinusoidally in the y direction 为简单起见，我们假定e在x方向上，并在y方向上正弦式地变化。
6.
Inside the film , the field varies sinusoidally and the entire surface - wave mode propagates alone the horizontal z direction 在薄膜内，场按正弦函数变化，整个表面波模沿水平z方向传播。
