Such transmissions make use of a fluid coupling or a torqueconverter, as well as mechanical, hydraulic, or electrical controls.
除了用机械装置、液压装置或电力装置来控制外，这种变速器还使用液力耦合器或变扭器。
2
In the light of the problem of excessive fuel consumption in hydraulic torqueconverter drive of mechanical drilling RIGS, experiments on the hydraulic coupling transmission are conducted.