Fuel oil is thought to be one of the main factors （） the operation and maintenance of an engine.
举一反三
- The quality of the fuel oil and lube oil （）， Im afraid. A: has much to do with the operation of the engine and its life B: have much to do with the operation of the engine and its life C: has much doing with the operation of the engine and its life D: have much doing with the operation of the engine and its life
- Impurities in the fuel oil will affect the operation of the engine， which has （） the use of separator and some other devices.
- 智慧职教: 5.I want to know what kind of fuel oil you use for the main engine.
- _____is generally not included in the fuel used for the main engine of the ship. A: Diesel oil B: Heavy oil C: Low sulfur heavy oil D: Gasoline
- If there is water in fuel oil， the revolution of the engine will （）.