当浅水区的蓝细菌和其它微生物生长的时候，一些沉积物沉积在上面，它们结合在一起形成岩石一样的小石塔和石丘，最后逐渐形成层状叠层石。
Cyanobacteria and other microorganisms build stromatolites in shallow water as they grow, gradually trapping and binding sediments into the small rock-like towers and mounds.
本产品体积小，重量轻，却可承受剧烈和反复伸缩，而通常这类伸缩却破坏了其它碳氟化合物的绝缘电线。
It is small and lightweight, yet will withstand the severe and repeated flexing that usually destroys other fluorocarbon insulated wires.
该术语通常是指钢的小碎片，如手工具、小零件、钻头喷嘴等，也可能是指钻头碎片或其它井下工具的碎片，以及磨铣作业所产生的残留物等。
The term is usually reserved for small pieces of steel such as hand tools, small parts, bit nozzles, pieces of bits or other downhole tools, and remnants of milling operations.
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