定速巡航

dìngsùxúnháng
(automotive) cruise control

CEDICT

Entry Composition

1 定 dìng
  1. to fix; to set; to make definite
  2. to subscribe to (a newspaper etc); to book (tickets etc); to order (goods etc)
  3. to congeal; to coagulate
  4. (literary) definitely
2 速 sù
  1. fast
  2. rapid
  3. quick
  4. velocity
3 巡航 xúnháng
  1. (military) to patrol (airspace or waters)
  2. (technical) to cruise; to maintain steady speed