The engine delivers instant acceleration whatever the revs.
不论转速如何，发动机都可以立即加速。
《柯林斯英汉双解大词典》
2
Unlike internal-combustion engines, electric motors have full torque, as pulling-power is called, from zero revs. They are thus predisposed to go like a bat out of hell without the aid of a gearbox.
On the other hand, this engine revs only if people have faith that those ledger entries, those pixels, those scraps of green paper, represent actual value.