小鼠突变对于展现哺乳动物基因功能和模拟人类疾病具有关键性的作用，对分析和探讨疾病的发病机制具有特别重要意义。
Mouse mutants play a key role in defining mammalian gene function and modeling human disease, and are of particular importance for analyzing and exploring disease pathogenesis.
由于冰水机是中央空调系统设备中最大耗电的项目，对节能具有关键性重要的影响。
As chiller for central air-conditioning system is the largest power equipment in the project, the crucial importance of energy-saving impact.
会计确认在会计信息系统中居于重要地位，对会计信息的形成有关键性作用。
The accounting recognition occupies an important place in the accounting information system and plays a key role in the formation of the accounting information.
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