chert stone
硅质岩
chert formation
硅质岩层
chert tool
硅质工具
chert flake
硅质片
chert outcrop
硅质露头
chert matrix
硅质基质
chert deposit
硅质矿床
chert layer
硅质层
chert sample
硅质样本
chert analysis
硅质分析
chert is often used to make tools in prehistoric times.
燧石常用于史前时期制作工具。
the geology class studied the formation of chert.
地质课研究了燧石的形成。
chert can be found in many sedimentary rock layers.
燧石可以在许多沉积岩层中找到。
archaeologists often discover chert artifacts at dig sites.
考古学家在挖掘现场常常发现燧石文物。
chert is known for its sharp edges when fractured.
燧石在破裂时以其锋利的边缘而闻名。
some native american cultures relied heavily on chert for tool-making.
一些美洲土著文化在工具制造中严重依赖燧石。
the color of chert can vary from gray to brown.
燧石的颜色可以从灰色到棕色不等。
chert often contains fossils of ancient marine life.
燧石中常含有古代海洋生物的化石。
many prehistoric people used chert to create arrowheads.
许多史前人类用燧石制作箭头。
chert can be polished to create beautiful decorative items.
燧石可以被抛光以制作美丽的装饰品。
chert stone
硅质岩
chert formation
硅质岩层
chert tool
硅质工具
chert flake
硅质片
chert outcrop
硅质露头
chert matrix
硅质基质
chert deposit
硅质矿床
chert layer
硅质层
chert sample
硅质样本
chert analysis
硅质分析
chert is often used to make tools in prehistoric times.
燧石常用于史前时期制作工具。
the geology class studied the formation of chert.
地质课研究了燧石的形成。
chert can be found in many sedimentary rock layers.
燧石可以在许多沉积岩层中找到。
archaeologists often discover chert artifacts at dig sites.
考古学家在挖掘现场常常发现燧石文物。
chert is known for its sharp edges when fractured.
燧石在破裂时以其锋利的边缘而闻名。
some native american cultures relied heavily on chert for tool-making.
一些美洲土著文化在工具制造中严重依赖燧石。
the color of chert can vary from gray to brown.
燧石的颜色可以从灰色到棕色不等。
chert often contains fossils of ancient marine life.
燧石中常含有古代海洋生物的化石。
many prehistoric people used chert to create arrowheads.
许多史前人类用燧石制作箭头。
chert can be polished to create beautiful decorative items.
燧石可以被抛光以制作美丽的装饰品。
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