查询词典 silcrete

So the researchers set up a fire pit and buried a silcrete sample at high temperature.

因此研究者们建立起一个火坑，然后把一个硅结砾岩样品埋进去。

The silcrete found at archaeological sites was glossy with a fine grain and a reddish color.

在南非的考古地点发现的硅结砾岩很光滑，带有细致的颗粒，呈红颜色。

About 72,000 years ago, our ancestors along coastal South Africa made tools from silcrete, a cement-like layer of soil.

大约7万2千年以前，在南非的沿海地带，我们的祖先用硅结砾岩制造石头工具。

Then a colleague from Arizona State University remarked that a piece of silcrete reminded him of heat-treated tools in the Southwest.

随后一名来自亚利桑那州立大学的同事说，硅结砾岩使他想起了南非西南部地区的热处理过的石器。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。