名詞 hydrocracking:

1. the process whereby hydrocarbon molecules of petroleum are broken down into kerosene and gasolene by the addition of hydrogen under high pressure in the presence of a catalyst

hy.dro.crack.ing

n.（名詞）
A process by which the hydrocarbon molecules of petroleum are broken into simpler molecules, as of gasoline or kerosene, by the addition of hydrogen under high pressure and in the presence of a catalyst.
氫化裂解：將石油的含氫分子分裂成更簡(jiǎn)單的分子（象汽油和煤油的分子）的過(guò)程，此分裂過(guò)程是在加催化劑及高壓氫氣的條件上進(jìn)行的