已有些研究者认为他们找到了答案,这与食物的结构有关,而不是它的化学成分—这一发现使得有些化学处理保存食物的方法无效了。
Some researchers think they have the answer, and it comes down to the structure of the food, not its chemical composition-a finding that could help rid some processed foods of chemical preservatives.
从材料的结构、成分、性能、加工工艺过程等一系列的研究都是实验的结果。
A set of research from structure, constituents, performance and machining process of materials are all the results of experiment.
化学是对物质成分、结构、性质和反应的研究。
Chemistry is the study of composition, structure, properties and reactions of matter.
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