The F-8 drifted out of formation but returned to within 5ft of PR-32's port wing at the same altitude.

这架歼八飞离了编队，但是又回到PR—32舱门方相同高度距离5英尺的地方。

youdao

DAST is one of the most important fluorinating agents in this century. This paper has summarized the recent advances in the formation of C-F bond by DAST.

DAST试剂是本世纪开发的最重要的氟化试剂之一，本文综述了利用该试剂形成碳-氟键的新进展。

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A C-F cleavage reaction was found when using ortho-fluoro substituted benzonitrile, which resulted in the formation of new C-C bond.

发现该反应在以邻位氟取代的苯睛为底物的情况下，碳-氟键可以被打断并有效地形成碳-碳键。

youdao

The chart of the November crude oil contract shows that prices are reaching the apex of its flag formation, lines f and g.

FORBES: Key Levels to Watch

Over the next three months, DIA formed a flag formation, lines e and f.

FORBES: Unlocking Chart Secrets with Volume

The completion of the short-term triangle formation (lines e and f) last week was accompanied by strong volume.

FORBES: 2 Ways to Buy More Gold for 2013