| 单词 | 基岩 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔bedrock〕It took five years to drill down to bedrock.耗时五年才钻到了基岩。柯林斯高阶〔bedrock〕The solid rock that underlies loose material, such as soil, sand, clay, or gravel.基岩：松散地质下的大石块，如土、沙、陶土或碎石美国传统〔bedrock〕They dug down for 10 feet before they hit bedrock.他们挖了10英尺深才挖到基岩。韦氏高阶〔burrow〕Puffins burrow in crevices on rocky coasts.海鹦栖息在基岩海岸的岩缝里。外研社新世纪〔chatter mark〕Geology One of a series of short scars made by glacial drift on a surface of bedrock.【地质学】 颤动擦痕：冰川漂流物在基岩表面留下的一系列短痕之一美国传统〔eclogite〕A coarse-grained basic rock consisting of a greenish mixture of pyroxene, quartz, and feldspar with large red garnet inclusions.榴辉岩：由辉石、石英、长石与红色石榴子石成分所组成的粗粒基岩美国传统〔isocline〕An anticline or a syncline so tightly folded that the rock beds of the two sides are nearly parallel.等斜褶皱：紧凑地折叠在一起以致于基岩的两侧几乎平行的一条背斜或向斜美国传统〔outcrop〕A portion of bedrock or other stratum protruding through the soil level.出露层：露出地表的一部分基岩或其他地层美国传统〔roche moutonnée〕An elongate mound of bedrock worn smooth and rounded by glacial abrasion.羊背石：一种由于冰川的磨损而变得平滑且呈圆形的由基岩构成的细长小丘美国传统〔rockslide〕The usually rapid downward movement of newly detached segments of bedrock.岩滑：新近分离的基岩断块迅速向下的移动美国传统 |
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