Texture compact, fracture slightly fibrous, yellowish-white, starchy, cambium ring distinct, rays radiate, some with clefts.
质坚实，断面略显纤维性，黄白色，粉性，形成层环明显，射线放射状，有的有裂隙。
2
The static and dynamic property of magnetic levitation force of melt texture growth (MTG) high temperature superconducting ball levitated above a permanent magnetic ring is investigated.