cherts

常見例句

• Chert Jie is looking at some picture.
  教師引導(dǎo)學(xué)生看主情景圖。
• Any of various hard,dark-colored rocks,especially basalt and chert.
  暗色巖一種堅(jiān)硬、暗色的巖石，尤指玄武石及燧石
• The sediments in this photo curve near the ends of chert pods.
  這沉淀物在這幅圖片的曲線近似冷凝物的黑矽石的扁豆形礦體。
• Paleontologists know chert as a good place to look for fossils.
  古生物學(xué)家以黑硅石為化石采集地點(diǎn)的標(biāo)志。
• Thus we can better understand the deformation of chert in a highly fluid form.
  這樣我們就能更好地理解燧石在高度流體狀態(tài)時的變形情況。
• Any of various hard, dark - colored rocks, especially basalt and chert.
  暗色巖一種堅(jiān)硬、暗色的巖石，尤指玄武石及燧石
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