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- graphitic chert 含石墨燧石
- 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
- 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 thin-beded siliceous-rocks include chert and depositional quartz with textures of oolite and pebble. 矽质岩包括燧石和沈积石英岩，呈薄层状产出，沈积石英岩具鲕状、砾状结构。
- Carbonate rocks are predominantly composed of intra-clastic dolostone, chert dolostone and sand-bearing dolostone. 碳酸盐岩以内碎屑白云岩、燧石白云儿和含砂白云岩为主。
- Any of various, often graphitic compositions used as the writing substance in pencils. 铅芯通常指含有石墨成分的铅笔用的书写物质
- The carbon nanotubes consist of one or up to dozens of graphitic shells seamlessly wrapped into a cylindrical tube. 碳纳米管是由单层或多层石墨片卷曲而成的无缝纳米级管状壳层结构。
- By this procedure,long nanocables having an iron carbide core and a graphitic shell were fabricated. 如用这种方法可以得到很长的具有电缆型结构的纳米炭,在其中具有单晶结构的炭化铁形成了电缆的金属芯。
- The steel ingot mold made of vanadium titanium vermicular graphitic cast iron has the best comprehensive property. 钒钛蠕墨铸铁是一种新型的工程结构材料,用钒钛蠕铁制造钢锭模具有良好的综合性能。
- The cardium sandstone is lithic, being composed of grains of chert, quartz, quartzite, silicified argillite, and other rock fragments. 卡迪砂岩是岩屑砂岩，由燧石，石英、石英岩、硅化泥板岩和其它岩石碎屑颗粒所组成。
- S. Iijima,” Helical microtubules of graphitic carbon”. Nature, Vol. 354, pp. 56-58（1991）. 成会明，纳米碳管制备、结构、物性及应用，化学工业出版社：北京，第11页（2002）。
- Iijima S,” Helical microtubules of graphitic carbon”. Nature, Vol. 354, pp. 56-58（1991）. 成会明，纳米碳管制备、结构、物性及应用.;化学工业出版社：北京，第11页（2002）。
- Also, a certain percentage of the ends of CNTs was found open due to the oxidation on graphitic sheets. 常规的方法是将样品分散于酸溶液中（硝酸或硫酸）煮沸，但这不可避免破坏了碳纳米管原来的定向性。
- Chert with good abrasion is the major content in conglomerate, and diamonds are contained in it generally. 砾岩主要砾石成分为燧石,磨圆度较好,普遍含金刚石。
- The former is used when working with crystalline materials such as flint, chert and obsidian. 之前的人类使用的是晶体类的原料，例如燧石，黑硅石及黑曜石。
