A dipstick is used to measure how much oil is left in an engine.
量油尺是用来探查引擎中的剩余油量的。
《牛津词典》
2
But because it will be used only intermittently, at times the Volt's conventional engine will turn on merely to circulate oil and other fluids.
但因为只在间歇时启用,有时Volt的普通发动机仅仅在油路或其他液路循环是才会启动。
3
A further advantage is that unmodified oils from plants, like the peanut oilused by Diesel in the 19th century, have high viscosity and require engine alterations.