engine oil level indicator

例句：

1. 1.The engine oil level indicator on thedashboard shows that the oil is low.
   仪表盘上的发动机油位指示器显示机油已低。
2. 2. The mechanic checked the engineoil level indicator and found it to bewithin normal ranges.
   技师检查了发动机油位指示器，发现其处于正常范围内。
3. 3. When the car was parkedfor maintenance, the technician used the engineoil level indicator to check the oil levels.
   汽车停放进行维护时，技师使用发动机油位指示器检查机油水平。