The chair chuffed slowly up the incline , rocking and jolting on the frozen clods . and suddenly , on the left , came a clearing where there was nothing but a ravel of dead bracken , a thin and spindly sapling leaning here and there , big sawn stumps , showing their tops and their grasping roots , lifeless . and patches of blackness where the woodmen had burned the brushwood and rubbish 小车子馒慢地驶上斜坡，在冰陈了的泥块上颠簸着前进，忽然左边现出一块空地，是儿只有一丛枯稿了的蕨草，四下杂布着一些斜倾的细长的小树，几根锯断了的大树桩，毫无生气地露着顶和根还有几处乌黑的地方，那是樵夫们焚烧树枝乱草和废物过后的痕迹。
This study was to determine the safety , feasibility , practicality and effectiveness of the expanding retrosigmoid suprameatal ( erssma ) approach dealing with the tumor invading the middle and superior clivus by the study of it ' s microsurgical anatomy . the advantage of less damage which the retrosigmoid approach had was reserved in the retrosigmoid suprameatal approach ( rssma ) 本题就是通过对扩大乙状窦后经内耳孔上入路显微外科解剖学研究，来确定用该入路处理向中颅窝、上斜坡侵犯型岩斜区肿瘤的安全性、可行性、实用性、有效性。
The sedimentation is the foundation , affecting the basic pattern of the reservoir , and the sedimentary facies zones beneficial to the formation and evolution of the reservoir includes platform edge bank facies , introplatform point beach facies and acclivity sedimentary facies , etc . ; the diagenesis is the key factor , determining the pattern and scope of the final distribution of the reservoir and being of great influence on reservoir structure , and the diagenesis of promoting the formation of storage rooms is mainly the dissolution occurred during hypergene stage and burial stage ; and the tectonism is the condition of influencing the connectivity among various reservoir bodies and among the storage rooms within a single reservoir body 该套储层是在4亿年左右的地质历史中，由沉积、成岩和构造作用相互影响而形成的最终成果：其中沉积作用是基础，影响着储层的基本形态，有利于储层形成与演化的沉积相为台地边缘滩、台内点滩和上斜坡等沉积相带；成岩作用是关键，决定了储层的最终分布形态和范围，对储层结构的影响至关重要，促进储集空间形成的成岩作用主要有表生期和埋藏期的溶解作用；构造作用是条件，影响着各储集体之间以及单一储集体内部储集空间的连通情况。
