Hydramatic (also known as Hydra-Matic) was an automatic transmission developed by both General Motors' Cadillac and Oldsmobile divisions. Introduced in 1939 for the 1940 model year vehicles, the Hydramatic was the first fully automatic mass-produced transmission developed for passenger automobile use.
网络释义
1、液压自动的
...完全自动的 full automatic液压自动的 hydramatic; hydromatic自动的故选 d. automatic ...