单词spiral-arm
网络: 旋臂；漩涡状旋臂；悬臂
Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small unregarded yellow sun.
远在银河系西旋臂末端，那片地图上没有标识出来的穷乡僻壤，有一颗不惹人注意的黄色小恒星。
The complex is called the Vela Molecular Cloud Ridge, and may form part of the edge of the Orion spiral arm spur in the Milky Way galaxy.
这片复合区域被称为船帆分子云脊（VelaMolecularCloudRidge），它可能参与形成了猎户座悬臂的边缘部分。
But the star forming regions seem more concentrated along the drawn-out (right side) spiral arm.
但恒星形成区域似乎更集中在长长的北部（右边）的旋臂上。
The excavated regions give a colorful "Swisscheese" appearance to the spiral arm.
由于存在很多缺失区域，旋臂就像五颜六色的“瑞士奶酪”。
Of the unfashionable end of the western spiral arm
西螺旋臂的末端
Distance of the perseus spiral arm in the Milky Way
银河系英仙臂的距离