self-changing

形容词 adj.
中文释义

英文释义

形容词 adj.
  1. Of a gearbox / transmission that changes gear automatically to a preselected gear. not-comparable
    — The gearbox is of the self-changing compound epicyclic SE.4 type, with Sinclair fluid coupling, having a maximum torque of 750 lb./ft.

词源

From self- + changing.
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