and almost completely dark
几乎完全黑暗
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The form and genesis of dark energy is almost completely unknown, but postulated as related to vacuum fluctuations similar to the Casimir Effect but generated somehow by space itself.
虽然目前对暗能量的形态和起源几乎完全未知，不过科学家认为它可能和空间本身所产生的真空起伏有关，或者说与卡西米尔效应有关联。
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