註記   條目
Difficulties and strategies : 曾冠婷,  2022 1
Difficulty identifying feelings : Efferson, Leah M  2019 1
Mountains -- Pakistan -- K2 (Mountain) -- Difficulty ofascent : Conefrey, Mick,  2016 1
Difficulty Score : 陳彥儒,  2023 1
Difficulty Value Amount : 陳彥儒,  2023 1
Diffie, Joe   2
Diffraction   25
Elastic waves -- Diffraction : Achenbach, J. D  1982 1
Electromagnetic waves -- Diffraction   2
Electromagnetic waves -- Diffraction. : Pathak, P. H.  2022 1
Electrons -- Diffraction   2
Diffraction grating : 黃振毓,  2022 1

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