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
Arm expanding 机械手伸出
·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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