磨削骨半规管透过菲薄的骨质显示暗蓝色的膜半规管即为“蓝线”。

The bony semicircular canal was drilled until it was so thin that the membranous canal was visible as blue color, called blue line.

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磨削骨半规管透过菲薄的骨质显示暗蓝色的膜半规管即为“蓝线”。

The bony semicircular canal was drilled until it was so thin that the membranous canal was visible as blue color, called blue line.

youdao