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n.
- 1. 燧石,黑硅石
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网络例句
以下结果来自互联网
- resembling or containing chert.

类似于或含有燧石质、石英质。 - Any of various hard, dark-colored rocks, especially basalt and chert.

暗色岩一种坚硬、暗色的岩石,尤指玄武石及燧石 - a variety of chert containing magnetite and hematite; mined as a low-grade iron ore.

一种含磁铁矿和赤铁矿的燧石,作为一种低等的铁矿石被开采。 - A porous, lightweight, siliceous sedimentary rock composed of the shells of diatoms or radiolarians or of finely weathered chert, used as an abrasive and a polish.

硅土一种包含有硅藻土或砂藻土或已风化石粉末的黑硅土的脆而轻的硅沉积岩,用作研磨剂和抛光剂 - A very hard mineral composed of silica, SiO2, found worldwide in many different types of rocks, including sandstone and granite. Varieties of quartz include agate, chalcedony, chert, flint, opal, and rock crystal.

石英由硅石组成的一种非常坚硬的矿物质,sio2,广布世界各地,存在于许多不同种类的岩石中,包括沙岩和花岗岩。石英种类包括玛瑙、玉髓、黑矽石、燧石、蛋白石及水晶
网络释义
以下结果来自互联网
- 1. 燧石
- 2. 隧石
- 3. 燧石,黑硅石
- 4. 秋尔特
