设计单波长准直光透射实验并通过实验测量组织模拟样品的总衰减系数；

Single wavelength collimation transmittance experiment is designed and conducted, with total effective attenuation coefficient of tissue phantoms being obtained.

youdao

本文以菠菜叶片作为实验材料，从DF衰减动力学及其总强度的变化研究了DCMU对植物光合作用的影响。

In this paper, with spinach as a testing material, we studied the effects of DCMU on photosynthesis of plant from the characteristics of DF decay kinetic curve and its total intensity.

youdao

采用垂直入射具有金属衬底的均匀等离子体模型，对不同入射频率的电磁波的衰减以及总出入射功率比进行了数值模拟。

In a model with vertical incidence of plane electromagnetic wave into plasma slabs with metal underlay, the attenuation of electromagnetic wave and reflected power are deduced.

youdao