例句與造句

1. nonlinear constant r | could be calculated according to the numbers of the diffraction rings . the sample's optical limiting properties were discussed . according to the experimental results, we estimated that the main mechanism of the optical limiting was from the thermo-optic effect
   對2-甲氧基5-丁氧基取代ppv氯仿溶液進行了激光誘導自衍射實驗，根據(jù)衍射環(huán)的個數(shù)估算出了樣品的非線性常數(shù)；同時還對該樣品進行了光限幅特性的研究，由實驗結(jié)果分析得出：由光熱效應引起的自衍射是產(chǎn)生光限幅特性的主要機制。
2. It's difficult to find diffraction rings in a sentence. 用diffraction rings造句挺難的