基本解释[医药科学]岩部英汉例句双语例句The inner ear is a closed system surrounded and protected by the petrous portion of the temporal bone.内耳是一个受到颞骨坚硬部分包围和保护的封闭系统。petrous portion更多例句词组短语短语petrous portion internal carotid artery 释义颈内动脉岩部petrous portion更多词组专业释义医药科学岩部