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.
碟片滚筒精选机用于小麦清理，从小麦中分离出燕麦、大麦、篙子和其它小颗粒杂质，它是根据筛选物的长度进行筛选的。
APPLICATION: The separater is designed according to the length of the grain to separate oat, barley, coclke and other granular impurities from the wheat.
碟片滚筒精选机用于小麦清理，从小麦中分离出燕麦、大麦、篙子和其它小颗粒杂质，它是根据筛选物的长度进行筛选的。
APPLICATION: The separater is designed according to the length of the grain to separate oat, barley, coclke and other granular impurities from the wheat.
碟片滚筒精选机用于小麦清理，从小麦中分离出燕麦、大麦、篙子和其它小颗粒杂质，它是根据筛选物的长度进行筛选的。
APPLICATION: The separater is designed according to the length of the grain to separate oat, barley, coclke and other granular impurities from the wheat.
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