Chertes

常见例句

• Chert Jie is looking at some picture.
  教师引导学生看主情景图。
• 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
• The sediments in this photo curve near the ends of chert pods.
  这沉淀物在这幅图片的曲线近似冷凝物的黑矽石的扁豆形矿体。
• Paleontologists know chert as a good place to look for fossils.
  古生物学家以黑硅石为化石采集地点的标志。
• Thus we can better understand the deformation of chert in a highly fluid form.
  这样我们就能更好地理解燧石在高度流体状态时的变形情况。
• 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
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