Glyoxal is prepared with waste liquid propellant HNO3-27S and ethanal.

利用报废的液体推进剂硝酸- 27s和乙醛制备乙二醛。

Alcohol dehydrogenase an enzyme that converts ethanol into acetaldehyde (ethanal).

醇脱氢酶：把乙醇转化为乙醛的酶。

There are over 70 kinds of nutritious content such as triterpenoid compound, ant acid, herbaceous ethanal and triphosphate.

三萜类化合物、蚁酸、草体乙醛，三磷酸腺酐等共70多种滋养成分。