Methods: The blue line of superior semicircular canal went through the mill and correlative structures were measured on 24 cases of wet cranial bone specimens(48 sides) .

方法：采用福尔马林固定的头颅标本24具（48侧），首先寻找弓状隆起并磨出上半规管蓝线，进一步测量其与内耳道及相关结构的位置关系。

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Semicircular seating arrangements are ideal for comfort, interaction and line of sight.

半圆形的座位安排对于参与者的互动、视线和舒适度都是十分理想的。

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

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”。

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