小珠山文化
小珠山文化-
镰的出现时间较晚，大约出现于距今6600-5400年前的小珠山二期文化。
The emergence of sickle time later , about 6600-5400 years ago there was a small bead Hill two cultures .
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磨棒演变过程是：横截面半圆形和椭圆形的石磨棒是整个新石器时代的主要型式，到小珠山三期文化出现了前几期中都不具备的横剖面为圆形的Ⅴ式石磨棒。
Polished bar evolution is : semi-circular and elliptical cross-section of rod-shaped stone is the main type of the Neolithic Age to the beads three mountain culture period appeared in the first few do not have a circular cross section of the V-type stone bar .