chert

常見例句

雙語例句

• 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躰狀態(tài)時的變形情況。
• The Anasazi made arrowheads by chipping away at pieces of glassy obsidian (black) and chert (grey and red) until they became sharp.
  古阿納薩齊人通過細細地打磨黑曜石和黑矽石使它們變的鋒利，最後制作出箭頭來。
• The Middle Permian Chihsia Formation of South China is featured by nodular chert, which is of implications in the reconstruction of coeval paleogeography and paleoceanography.
  燧石結(jié)核是華南地區(qū)二曡紀棲霞組的重要識別特征之一，其成因具重要的古地理、古海洋意義。
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權(quán)威例句

• When he shone a light up through it, he could see fine-grained particles of silica, known as chert, mixed in with what looked like coal.
  NEWYORKER: The Martian Chroniclers
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