n. signet ring
misc. ring form
1、环状体(rig-form) 亦称小滋养体或环状滋养体,是疟原虫钻入红血细胞1—3小时后的形态,经染色后,在显微镜下可见疟原虫纤细环状的细胞质呈蓝色,有一深...
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这个主安全壳像一个被倒置的老式灯泡，在一个环状体的顶部保持平衡。
This primary containment vessel looks like an old-fashioned light bulb turned upside down and balanced on top of a doughnut.
由于椭圆形环状体处在高海拔和高纬度，所以，科学家认为椭圆形环状体可能与木星强大的极光有关。
The oval was at high altitude and high latitude, so scientists think the oval may have been associated with Jupiter's powerful auroras.
之后，在15日周二的清晨，有报告称建筑物内可能发生了爆炸，位于主安全壳基座的环状体遭到了破坏。
After that, in the early morning of Tuesday 15th, there were reports of possible explosions within the building and damage to the doughnut at the base of the primary containment.
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