A numerical approach based on finite difference time domain (FDTD) method was presented for investigating the diffraction effect of a metal grating fabricated in QWIP.
本文给出了一种基于时域有限差分法(FDTD)的数值方法，计算制备在QWIP器件上的金属光栅的衍射效应。
To elucidate the adsorptive effect of activated charcoal on uremic toxin in blood serum with the same dosage of activated charcoal in difference time or in difference dosage in the same time.
目的研究同一剂量不同时间和不同剂量同一时间爱西特（活性炭）对血清中小分子尿毒素的吸附作用。
At the same time, there is an different effect on runoff, because of the difference of climate, underlying surface condition, the vegetation types and the rainfall intensity.
同时，森林对径流的影响，因气候、下垫面条件、植被类型和雨强等不同而存在差异。
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