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