| 单词 | catalytic cracking |
| 释义 | > as lemmascatalytic cracking catalytic cracking n. the cracking of petroleum oils by a process using a catalyst. ΘΚΠ the world > matter > chemistry > organic chemistry > chemical processes or reactions > [noun] > petroleum processes > catalytic cracking catalytic cracking1927 cat cracking1943 1927 Chem. Abstr. 644 (title) Catalytic cracking of heavy fractions of petroleum... A special exptl. app. for catalytic cracking, in which a continuous influx of oil and recovery of the gas, oil and volatile products is carried out, is described. < as lemmas |
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