Then, a little chemistry knocked the acid off, creating what was clearly an alkene, so they named it benzene, because it was an alkene that was from the benzoin resin.
然后，用一点化学方法将酸分解， 产生明显是烯烃的物质， 因此他们将其命名为苯，因为它是一种来自安息香树脂的烯烃。
Benzoin resin
原声例句
Crash Course 综合篇
英语百科
Benzoin resin
Benzoin resin is a balsamic resin obtained from the bark of several species of trees in the genus Styrax. It is used in perfumes, some kinds of incense, as a flavoring, and medicine (see tincture of benzoin). Commonly called "benzoin", it is called "benzoin resin" here to distinguish it from the chemical compound benzoin. Benzoin resin does not contain this crystalline compound.
- Billiken的意思
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- bill in aid of execution的意思
- bill in a set的意思
- billinder的意思
- bill in domestic currency的意思
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- Bill in equity的意思
- bill in foreign currency的意思
- billing的意思
- Billinga的意思
- billing address的意思
- billing and accounting computer的意思
- billing and accounts receivable的意思
- billing as的意思
- Billingborough的意思
- billing by automatic typewriter的意思
- billing category的意思
- billing clerk的意思
- billing computer的意思
- billing cost的意思
- billing costs的意思
- billing cycle的意思
- billing data的意思
- billing demand的意思