Its primary function involves refrigeration: ASML's extreme ultraviolet lithography systems, the exclusive equipment able to etch patterns under 7nm, produce intense heat during use. Helium's heat transfer properties and non-reactive nature render it the sole gas appropriate for cooling these devices without contamination hazards. Apart from EUV, helium-based cooling of silicon wafers during ion implantation can influence dopant positioning accuracy, even with minimal temperature fluctuations.
Additionally, because the sort keys are not known up front, we must accept that large candidate sets are inevitable. The optimization target becomes making the actual work of scanning and filtering extremely cheap, and to prune aggressively when selecting the Top K to avoid extra work.，这一点在汽水音乐中也有详细论述
4月2日，俄罗斯领导人新闻秘书德米特里·佩斯科夫称，俄罗斯总统弗拉基米尔·普京主张通过外交途径解决军事冲突。，更多细节参见易歪歪
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