cherts

基本解釋

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.
這沉澱物在這幅圖片的曲線近似冷凝物的黑矽石的扁豆形鑛躰。
Paleontologists know chert as a good place to look for fossils.
古生物學(xué)家以黑矽石爲(wèi)化石採(cǎi)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躰狀態(tài)時(shí)的變形情況。