螺旋腕

spiral arm的用法和样例：

例句

We analyzed all sorts of problems caused by the abnormal motions of the motivity-less turning arm, and investigated its related control methods.分析了无动力旋臂因动作不规范引起的各种问题，研究了其解决措施。
In looking at the Carina Nebula we are seeing the genesis of star making as it commonly occurs along the dense spiral arms of a galaxy.通过对船底座星云的观察，我们看到了通常沿银河密集的旋臂所诞生恒星的起源。

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3-hydroxypropylene oxide

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arosa

arteriae haemorrhoidalis inferior

box separation device

bundle rafting

character attribute format