There are chemical interactions manipulated by plant secondary metabolites between plant and other organisms, which act as plant chemical defense on pests in cropping ecosystems.

植物与其它有机体种间存在着通过次生物质为媒介的化学作用，这些化学作用在农业生态系统中则表现为植物对有害生物的化学防御。

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Generally, chemical interactions occurred between foundation rock (including grout curtain) and ground water are the main reason of many time-related engineering problems occurred in dam foundation.

坝基岩体(包括防渗帷幕)与其中地下水水溶液之间发生的化学作用是坝基晚期出现一系列病态问题最重要的原因之一。

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This paper summarizes the recent progress in the study on chemical ecology of tritrophic interactions.

本文综述了三营养相互作用化学生态学研究的最新进展。

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Foldit, an online video game, allows nontechnical, nonbiologist players to visually "fold" protein structures, while computers calculate the chemical interactions corresponding to each arrangement.

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Daniel Schultz, the FDA's chief device regulator, says new medical devices don't need the large-scale exhaustive trials of the drug industry because it is easier to predict the behavior of a machine than it is to track the chemical interactions of a new drug in the body.

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Chemical reactions are caused by interactions between the electrons of the reagents.

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