用“primitive form”造句大全，primitive form造句

When the mineral-bearing alluvium is shaken in the water-filled pan, the heavier particles sink to the bottom while the lighter ones are washed away. This primitive form of placer mining is still used in some places for panning gold.

(biology) degenerative reversion of cells or tissue to a less differentiated or more primitive form.

At the start of the 13th century, a primitive form of milling the silk threads was already in use.

In the fourth year during the reign of Daoguang of Qing Dynasty (1824 AD), China's first bank in its primitive form - the Banking Shop of Sunrise and Prosperity was founded.

This primitive form of placer mining is still used in some places for panning gold.

Dr Denise Herzing and colleagues at the Wild Dolphin Project in Jupiter, Florida, established a shared, primitive form of language using sounds, symbols and props.

Small seashells were once used as a primitive form of money.

Feathers in their most primitive form were single filaments, resembling quills, that jutted from reptilian skin.

Is magic to be regarded as an earlier and more primitive form of science, or is it not?

The karyotype is asymmetrical and bimorphous, suggesting that the species is one of the primitive forms in the family Hynobiidae.