adj.巖石的；巖石般的；堅(jiān)硬的

The symbolism of the primordial petrous picture was almost the nature made. 原始巖畫的象征性幾乎是天籟所成。

Objective:To explore the clinic characteristic of petrous bone cholesteatoma. 目的:探討巖部膽脂瘤的臨床特征及手術(shù)方法。

RESULTS: The great superficial petrosal nerve was an important landmark in operation on the petrous bone. 結(jié)果:巖大神經(jīng)是磨除顳骨巖部的重要標(biāo)志,腫瘤全切16例(69。

METHODS: A microsurgical study for petrous bone was performed in four cadav-eric adult head specimens. 本文探討乙狀竇前入路顯微手術(shù)切除巖斜區(qū)腫瘤術(shù)中顳骨的處理技巧。

It was this very primitive symbolic thinking that made the primordial petrous picture full of poetry. 正是原始象征思維,使原始巖畫充滿詩性。