| 摘要 |
A device comprising a flat susceptor rotating parallel to a reference surface about a rotary shaft perpendicular to this surface and comprising means for obtaining the stability of the susceptor held in sustentation and means for obtaining its rotary movement, is characterized in that these means are constituted by the structure of the susceptor, of the rotary shaft and of the reference surface, which cooperate with each other under the action of one or several flow of gas.
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