| 摘要 |
The lower portion 11 of the chamber 8 of the gear train 1, 3 substantially matches the periphery of the lower gear 1, in the proximity of the latter, and comprises a dividing spout 12 connected to an evacuation duct 14 emerging, via a restriction 20, into a reservoir 16 whose base communicates with the base of the lower portion of the chamber 8 via a duct 22, 23, 25 provided with a restriction 26. <IMAGE>
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