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- The ash layer has since become as hard as concrete, and was locally quarried as a building material, which is how the footprints resurfaced. 先前，也有科学家认为，人类来到美洲大陆的时间可能要比这一说法早上数千年。
- Natural zeolites form where volcanic ash layers react with alkaline groundwater. 天然沸石形成于与碱性地下水起化学反应的火山灰层之中。
- A number of mammalian fossils, stone artefacts, bone and antler tools, charcoal and ash layers were found in the cave sedimetnt. 经过初步试掘,从锡水洞内的堆积层中发现了许多石器、骨器、木炭屑和灰烬层,以及哺乳动物化石。
- Comparisons with the chronical records of the volcanic ash layers contained in the middle upper part of the core suggest an age error less than 3%. 与冰芯中上部含深褐色火山灰冰层的历史记录年代相比误差小于3%25。
- DIFFUSIONAL EFFECTS IN THE ASH LAYER OF THE OIL SHALE CHAR COMBUSTION 油页岩半焦燃烧中灰分层的扩散动力学研究
- Water flows from the condenser to the ash room. 水从冷凝器流出，流入灰浆室。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- Don't drop cigarette ash on the carpet. 别把烟灰落在地毯上。
- The smoldering coal or ash of a dying fire. 余烬将要熄灭的火中的冒着烟的煤块或灰烬
- Stub out your cigarette in the ash tray. 把你俩的香烟在烟灰缸里捻熄。
- The inner layer of the wall of a spore. 孢子内壁孢子壁的内层
- There is a fine layer of dust on the desk. 桌子上有一层薄薄的尘土。
- The middle, usually fleshy layer of a fruit wall. 中果皮果皮中间通常含肉较多的那一层
- The bottom layer is a mixture of sand and clay. 最下面的一层是沙和泥的混合物。
- A fine layer of dust covers everything. 所有的东西都盖了一层薄薄的灰尘。
- I wish he would refrain from scattering his ash all over the carpet. 我希望他不要将烟灰往地毯上乱弹。
- A layer, as of doubled-over cloth or of paperboard. 一层一层，如折叠过的布料或纸板的
- A surface, layer, or mass of frozen water. 冰面冻结的水的面、层或块
- The crude sodium carbonate ash obtained from these plants. 苏打灰从这些植物中获得的粗碳酸钠灰
- A thin layer of bone, membrane, or other tissue. 骨骼、粘膜或其它组织的薄层
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
