sand frame

When hardwood cutting, it could improve the survival rate to eighty-five percentage by using cuttage stored in sand, frame culture and vermiculite.

在硬枝扦插时，采用插条冬季沙藏、早春温床催根、以保温性好的蛭石做扦插基质等措施能使扦插成活率提高到85%；

Nowadays, abaci are often constructed as a wooden frame with beads sliding on wires, but originally they were beads or stones moved in grooves in sand or on tablets of wood, stone, or metal.

如今，算盘往往建造在电线与滑动珠子木框架，但是最初他们是珠子或石头，在沙槽移动或木材，石头或金属片。

Andesite: Has the gauge frame, original Pi Zhu, the original pyrrosia lingua lantern, the sand blasting board, the building stone material and so on.

安山岩：有规格板、原皮柱、原石皮灯笼、喷砂板、建筑石材等。