The primary new technologies that improve the productivity of EAF mainly include EAF power input technology, oxygen input technology and EAF intelligent control technology(expert system).

提高电弧炉炼钢生产率主要基于以下几项新技术，包括改善电弧炉电效率、强化供氧技术、 智能控制技术（ 专家系统）等。

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Decreasing welding thermal input will decrease the oxygen content and the number and size of oxide inclusions, and it improves the toughness of weld metal.

降低焊接线能量时，将降低熔敷金属中的氧含量及其氧化夹杂物的数量和大小，从而提高熔敷金属的韧性。

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This is exactly where I don't really know the details, but I take it it's something like: because of whatever the original input was, eventually the blood's no longer circulating and oxygen isn't making its way around the body.

事实上我对这方面不是很了解,我只能认为是,不论最初的死亡原因是什么,最后血液不再流动,氧气不能输送到全身

耶鲁公开课 - 死亡课程节选