steering swivel
... 旋转面壳 shellofrevolution 转向旋转面 steering swivel 富可旋转面镜 Foucault rotating mirror ...
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可旋转的多接点部件使它们几乎能在瞬间转向。偷袭这种机器人近乎不可能，因为其每一面都肯定面向“前方”。
Their rotating multi-jointed assemblies allow them to change facing almost instantly, and it is nearly impossible to get a drop on the droids as all sides conceivably face "front."
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