The technique requires considerable financial investment as the pressure vessel has to withstand the internal gas pressure and allow the powder to be heated to high temperatures.
因为压力容器必须经受住内气压并允许粉末加热到较高温度，所以这种技术需要相当可观的资金投入。
The plsama modification of powder like material has been carried out by adding rotating cylinder in the vacuum vessel.
普通的表面处理仪难以处理粉体材料，通过加装旋转滚筒，实现了粉体材料的表面改性处理。
The leaf powder movie-making, may observe the glandular hair, the non-glandular hair(2~6 cells)and the spiral vessel;
地黄叶粉末制片，可观察到腺毛、非腺毛（2～6个细胞不等）及螺纹导管；
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