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Natural rock joint surface profiles belong to fractal category. 自然岩石节理表面轮廓线可以看作为分形曲线。
Lion Rock on matches, The ancestral hole, He-chuen, Zhuo-Lake and other natural rocks such as the old remains. 狮子山上对弈石、二祖洞、不涸泉、濯锡潭等自然山石依然如旧。
Within massive sandstone outcrops, above comparatively dense forest, are five clusters of natural rock shelters, displaying paintings that appear to date from the Mesolithic Period right through to the historical period. 在密林中大量沙石岩中，有五组天然石窟，里面岩画的历史从中石器时代一直延续到文明历史时代。
Not a house like those known to surface dwellers, this abode was carved into the heart of a stalactite, a natural rock formation that hung from the cavern's ceiling like an enormous ebony fang. 没有一栋建筑的主人有此威名，这栋建筑由一整块钟乳石雕刻而成，一块天然的石钟乳成为整栋建筑的天花板，有如檀色的巨大狼牙。
the natural rock (lake) asphalt concrete 天然岩（湖）沥青混凝土
This freeze-thaw cycle, a common form of erosion of natural rocks, too, weakens a structure directly and also exposes steel reinforcing rods to water, causing them to rust. 这种作为侵蚀天然岩石的常见形式的冻融循环，同样会直接削弱建筑物，并且还使钢筋条与水接触而导致他们生锈。
It is natural for a cat to catch mice. 猫捉老鼠是本能。
It's natural to slack2 off towards the end of a hard day's work. 一天紧张工作快结束的时候有些放松是自然的。
Many natural materials are becoming scarce. 许多天然原料越来越少。
Performance Research of Modified Asphalt Mixture with Natural Rock 天然岩沥青改性沥青混合料的性能研究
Our motherland flows with natural resources. 我们祖国蕴藏着丰富的天然资源。
Events took their natural course. 事态依自然进程发展。
She has a natural wave in her hair. 她的头发自然卷曲。
Magnetism is a natural phenomenon. 磁力是一种自然现象。
This paper summes the directly use of the natureal rocks in ceramics and its development forefield.its aim is to show the progress of our ceramic materials. 本文着重对天然岩石直接在陶瓷生产中的应用研究及其开发前景进行了论述，旨在反映当前我国陶瓷新原料的进展。
It is difficult to be natural when one is tense. 人在紧张的时候很难泰然自若。
The egoism of an artist sometimes seem natural. 艺术家的自负有时看起来是自然的。
They used only natural pigments to dye the wool. 他们只用天然颜料染毛织品。
Children are natural exhibitionists. 儿童天生喜欢自我表现。
Everything we used was made from natural materials. 我们所用的一切都是由天然材料做成的。