基于法布里珀罗(F P)腔光束干涉理论，建立垂直腔半导体光放大器(VCSOA)的双稳模型。
Based on the beam interferential theory of Fabry-Perot semiconductor laser, a bistable model of vertical cavity semiconductor optical amplifier (VCSOA) was established.
“我希望能像家养小精灵一样幻影移形，”罗恩盯着多比消失的地方说道，“那么幻影显形考试就十拿九稳了。”
"Wish I could Disapparate like a house-elf," said Ron, staring at the spot where Dobby had vanished. "I'd have that Apparition Test in the bag."
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