| 摘要 |
The present invention provides a powertrain of an automatic transmission that includes first, second, and third planetary gear sets. The first planetary gear set has first, second, and third operational elements that occupy sequential positions in a lever diagram. The second planetary gear set has fourth, fifth, and sixth operational elements that occupy sequential positions in the lever diagram. The third planetary gear set has seventh, eighth, and ninth operational elements that occupy sequential positions in the lever diagram.
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