That makes it harder for moisture to build up in the tank, which can damage your vehicle's fuel injection system.

这样油箱中的水分就不易积聚，从而损坏汽车的油射系统。

And second, modern car engines shut off fuel injection or idle, when decelerating.

其次，现代汽车发动机在减时会油射。

But the new millennium brought advances in materials, manufacturing, and computing technology, including systems which could manage fuel injection with incredible precision.

但新千年带来了材料、制造和计算技术的进步，包括可以以令人难以置信的精度管理油射的系统。

Old cars have carburetors; new cars have fuel injection systems. These are the things that control how much gas is burnt, and how much air mixes with the gas to get the proper amount of burn.

旧车有化油器；新车有油射系统。 这些是控制烧多少气体的东西， 以及多少空气与气体混合以获得适当的烧量。