公布 中文名称：膨胀臂 英文名称：expanding arm 定义：银河系内离银心约3 000pc处的一条旋臂，因以约53km/s速度离银心向外作膨胀式运动而得名。 应用学科： 天文学（一级学科）；恒星和银河系（二
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Expanding ARM UART 串口扩展
expanding cutting arm 伸缩式切削臂
·2,447,543篇论文数据，部分数据来源于NoteExpress
Teachers have accused the inspection system of being misused as an arm of the government's policy of expanding academies.
BBC: Teachers vow to press on with strike plan
But such was the political storm over a recent attempt to privatise Pemex's petrochemicals arm that the government will not let private firms become heavily involved in expanding oil production.
ECONOMIST: The oil industry
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