The structure formula of sesquiterpenoids disclosed in the invention shows as formula I.

本发明公开的倍半萜类化合物的结构式如下式i所示。

youdao

Due to some reasons each compound name is not always accompanied by its chemical structure formula in the abstracts collected by chemistry database.

由于种种原因，在化学数据库所收集的文摘里，每种化合物名称并不一定附有它的化学结构式。

youdao

And of course nobody can remember this formula, so what is the structure of this formula?

当然，没有人能记住这个公式，这个公式的结构是什么呢？

youdao

Providing performance picks up it could yet become an example of a hedge fund that is capable of making profits year in, year out, with a long-term ownership structure: a formula as elusive as that behind any black-box trade.

ECONOMIST: Can hedge funds outlive their star managers?

Formula One was planning to structure its Singapore IPO in the form of a stapled security, which includes a sale of both shares and loan notes.

WSJ: CVC May Revive Formula One Singapore IPO

"We have been more than patient with the current management and governance of Formula One, but recent developments have underlined the need for a structure that guarantees a stable and prosperous future of the sport, " said GPWC chairman Juergen Hubbert.

BBC: SPORT | Motorsport | Rival F1 series names consultants