PONS词典中的例句（已经编辑处理）
单语范例（未经PONS编辑处理）
英语
- Mechanisms of catalysis include catalysis by bond strain; by proximity and orientation; by active-site proton donors or acceptors; covalent catalysis and quantum tunnelling.en.wikipedia.org
- He explains, for example, that hydrochloric acid should be seen not as a proton donor, but an electron thief.www.telegraph.co.uk
- The proton donor selectively approaches the less hindered face of the enolate, thus leading to the less stable of two diastereomers.en.wikipedia.org
- Addition of water or another proton donor gives the diol.en.wikipedia.org
- This happens when a proton donor gets added to the soil.en.wikipedia.org
- These contain a glutamic acid residue which, on the basis of similarities with other families of glycosyl hydrolases, probably acts as the proton donor in their catalytic mechanism.en.wikipedia.org
- Both mechanisms exhibit the same distance between the proton donor and the glycosidic oxygen, situating the proton donor close enough to the glycosidic oxygen for hydrogen bonding.en.wikipedia.org
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英语