不同年龄的儿童和成人在思维方式上有着质的差异。
There are qualitative differences in the way children of different ages and adults think.
清香型白酒发酵中的酯化机理同浓香型、酱香型等白酒酯化有质的差异。
The esterification mechanism in the fermentation of Fen-flavor liquors differs from esterification in Luzhou-fla vor liquors and Maotai-flavor liquors in nature.
本文介绍了深层油气勘探、研究现状，较系统地阐述了深部储层与中浅部储层质的差异。
The present paper gives a systematic description of the current state of the research and exploration of deep reservoirs.
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