extra short oil的意思|示意

You need not have bought extra oil for this short trip.

在这么短的旅程中，你实在没有必要多买油。

Aladdin oil lanterns or vegetable oil lanterns with extra supplies of fuel are other short-term alternatives, and these will emit the brightest light in the absence of light bulbs.

其他短期的替代物是有额外的油料供应的阿拉丁油灯，或菜油灯。在电灯泡缺乏时，这些灯会发出最为明亮的光线。

At present, heavy oil or extra heavy oil is produced by means of thermal oil recovery or rod pumping, which are low efficient, energy consuming and short in production life.

目前，稠油或特稠油一般采用热力及有杆泵进行开采，这种生产方式效率低、能源消耗大，且设备运行寿命短。