Covalent catalysis involves the substrate forming a transient covalent bond with residues in the active site or with a cofactor.

共价催化涉及底物与活性位点中的残基或与辅因子形成瞬时共价键。

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RECOVERY has long seemed a transient guest in America.

长久以来，美国的经济复苏似乎都转瞬即逝。

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Because your relationship is based on a transient state of mind.

因为你的两性关系是建立在一个想法交替的阶段。

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His team used a method called transient gene silencing to change the genetic structure of the three mosquito species responsible for spreading malaria.

VOA: special.2010.04.20

Such a transient but decisive use of air power would be supported by the many valid U.N.

CENTERFORSECURITYPOLICY: CREATING A GREATER SERBIA

Summers was described as a transient with a criminal record including convictions for burglary and grand theft.

NPR: Suspect In LA Girl's Abduction Captured In Mexico

It matters, of course, whether this immunity from criticism is a transient phenomenon or a permanent one.

ECONOMIST: The people��s prince | The