Incoherently coupled dark-dark , bright-bright and bright-dark screening soliton pairs in centrosymmetric photorefractive crystals are possible due photorefractive effect.
预言了亮-亮，暗-暗和亮-暗非相干耦合空间孤子对可存在于中心对称光折变介质中。
Objective To investigate the effect of amniotic membrane transplantation on initial corneal wound healing after photorefractive keratectomy(PRK).
目的探讨羊膜移植对激光角膜光学切除术（PRK）后早期伤口愈合的影响。
Objective To investigate the effect of amniotic membrane transplantation on initial corneal wound healing after photorefractive keratectomy(PRK).
目的探讨羊膜移植对激光角膜光学切除术（PRK）后早期伤口愈合的影响。
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