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Antonija Posted 20 years ago
Vocabulary

gradation

Can you please check the blue parts and the rest of the paragraph.



Gasoline is used as a power fuel for most engine vehicles. It is produced in two gradations: normal petrol (86-88 octans) and super (98-100 octans). The octane number is a measure for anti-knocking characteristic/feature of the petrol (prevention against premature ignition), which depends on its system.
  

Top answer

Gasoline is used as a power fuel for most vehicle engines. It is produced in two grades: normal petrol (86-88 octane) and super (98-100 octane). The octane number is a measure of the anti-knocking property of the petrol (prevention against premature ignition), which depends on its system.

— Alan.es

  • Gasoline is used as a power fuel for most vehicle engines.
  • It is produced in two grades: normal petrol (86-88 octane) and super (98-100 octane).
  • The octane number is a measure of the anti-knocking property of the petrol (prevention against premature ignition), which depends on its system.
  • I'm not sure what 'which depends on it system' relates to and why it's there.
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3 Answers
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Gasoline is used as a power fuel for most vehicle engines. It is produced in two grades: normal petrol (86-88 octane) and super (98-100 octane). The octane number is a measure of the anti-knocking property of the petrol (prevention against premature ignition), which depends on its system.

I'm not sure what 'which depends on it system' relates to and why it's there.
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Thank you Alan. 'The system'-I have no idea. Does it have to do with 'vehicle engines'
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Antonija'The system'-I have no idea. Does it have to do with 'vehicle engines'
Probably not, but who knows... Maybe "system" refers to the composition of additives used to increase the octane number?

Kajjo
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