oil step是什么意思

中文翻译油等级，油压分段

网络释义

1)oil step,油等级，油压分段2)oil pressure step circuit,油压分段回路3)oil step access hole,油压分段检视孔4)oil step function,油压分段功能5)oil step latch,油压分段闭锁6)fuel grade,燃油等级