出典:Wiktionary
出典:『Wiktionary』 (2025/10/08 18:53 UTC 版)
出典:Wikipedia
出典:『Wikipedia』 (2011/02/23 15:30 UTC 版)
n-Heptane is the straight-chain alkane with the chemical formula H3C(CH2)5CH3 or C7H16. When used as a test fuel component in anti-knock test engines, a 100% heptane fuel is the zero point of the octane rating scale (the 100 point is a 100% iso-octane). Octane number equates to the anti-knock qualities of a comparison mixture of heptane and isooctane which is expressed as the percentage of isooctane in heptane and is listed on pumps for gasoline dispensed in the United States and internationally.
![]()
pipits
フェーベ
mantispids
eelpouts
ゴシキドリ類
barbets
ヤバネツパイ
pentails
a stomach
カラミント
a cocoon
くび
あご
a nail
名詞の変化形:
|