从右前罩板外侧孔切断同轴电线保护环。

Disengage the coaxial cable grommet from the hole in the right cowl side outer panel .

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目的：观察血管性痴呆（VD）小鼠第四脑室外侧隐窝与外侧孔之间室管膜游离面扫描电镜特征。

Objective: To study the scanning electron microscopic (SEM) characteristics of floor between lateral recess and lateral aperture of the fourth ventricle in the mice with vascular dementia (VD).

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此外，附件软骨还将外侧脚与梨状孔连在一起。

Additionally, the accessory cartilages connect each lateral crus to the piriform aperture.

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