With the coal rank reduced, the lightcomponent content of the ash-free ash obtained would be increased.
随着煤阶的降低，得到的无灰煤中轻组分含量增加；
2
The experimental method used to form doughnut laser trap through axicons and by extracting high order diffractive lightcomponent is introduced.
介绍了用锥镜法和取高级衍射光斑法来实现空心光阱的实验方法。
3
Another problem for LSM's is the influence of the diffuse-lightcomponent on the received light intensity signal, which cannot be eliminated in the experiment.