MRI的氦耗量已大幅下降：早期设备每小时泄漏0.4升，需每数月补充1000-2000升储罐（气态氦易泄漏的特性反而使其成为检漏工具）。现代“零蒸发”MRI基本无需补充氦气。随着这些设备市场份额扩大，MRI的氦气需求将持续下降，但在可预见的未来仍将是重要需求来源。
In addition to I/O updates, the renderer was rearchitected, lowering the time
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