| 摘要 |
<p>The storage vessel is used for holding a supply of fine granular material as used in dentistry. The material may be gypsum, pumice-stone etc. The vessel consists of a hopper with a vibrator and a discharge opening, which can be shut, at the bottom. The hopper is made of rubber or similar material, and can be suspended freely at the top from a rigid support, the latter detachable from a wall bracket. The vibrator can be fixed to the bracket via vibration dampers.</p> |
