英语翻译（3）当光栅厚度变大时,光栅的波长变化变小,旁瓣高度变大；（4）当光栅线对增大时,光栅的波长变化变小,旁瓣高度变

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英语翻译
（3）当光栅厚度变大时,光栅的波长变化变小,旁瓣高度变大；（4）当光栅线对增大时,光栅的波长变化变小,旁瓣高度变化不明显.进一步探讨了高斯光束通过光栅后的变化,可知：若以高斯光束入射光栅,出射的衍射波理论上也应该为一个高斯光束,不同的是,出射高斯光束的振幅和相位与入射相比有所变化.

3) When the thickness of grating size,the grating changes the wavelength become smaller,the high sidelobe large; (4) When the grating line on increases,the grating wavelength smaller sidelobe height did not change significantly.To further explore the Gaussian beam through the grating after the change,we can see:If the incident Gaussian beam grating,the diffraction of radio-wave theory should be a Gaussian beam,different yes,a shot of the Gaussian beam amplitude and phase with the incident compared to change.
3) works as when diffraction grating thickness fill-out,the diffraction grating wave length change changes is small,the side lobe increases highly; (4),when light grating to enlargement,the diffraction grating wave length change changes is small,the side lobe change is not highly obvious.Has further discussed the Gauss light beam after the diffraction grating change,may know:If take the Gauss light beam incidence diffraction grating,the projection diffracted wave should also as a Gauss light beam theoretically,what is different,projects the Gauss light beam oscillation amplitude and the phase and the incidence compares has the change.

英语翻译（3）当光栅厚度变大时,光栅的波长变化变小,旁瓣高度变大；（4）当光栅线对增大时,光栅的波长变化变小,旁瓣高度变用光栅测定光的波长时（光栅常数已知）,若将光栅稍稍倾斜,求得的波长是变大还是变小? 超声光栅测声速时,为什么超声光栅的光栅常数等于超声波的波长? 为什么超声光栅的光栅常数等于声波的波长光的衍射的问题波长为λ的单色光垂直入射到一衍射光栅上,当光栅常数为d时,第一级衍射条纹对应的衍射角为θ,当光栅常数为d/ 一光栅的光栅常量为b+a=0.000006m,缝宽为b=0.000005m.当用波长为600nm的单色光垂直照射此光栅时光栅衍射变化的特点光栅常数的大小对测量波长有何影响为什么超声驻波形成的超声光栅的光栅常数为超声波波长? 怎样利用已知光栅常数的光栅测量光源的波长光栅衍射试验中,平行光斜入射光栅时的光栅方程. 驻波波长之间的距离为半个波长,为什么超声光栅的光栅常数等于超声波的波长?