(chemistry) any process determined by the atomic and molecular composition and structure of the substances involved

the effect of bio-fertilizer to the soil in apple orchard was researched, and the chemical action of absorption and distribution of cadmium and copper in soil and apple plant was studied.

本试验研究了生物有机肥的土壤学效应以及对重金属镉、铜在土壤中和苹果植株体内吸收分布的影响。

the purification of a substance by exposure to the mechanical or chemical action of air.

物质暴露于空气中，通过机械作用或化学反应使其纯化。

oxygen will exert a chemical action on metals.

氧会对金属产生化学作用。

using the theory of large mode and small mode on chemical action of water-rock, the reason why the strenuous deformation and failure…

重点讨论了考虑化学损伤的破坏力学方法，认为此方法可以解释并定量分析水-巖反应的力学效应。

the research on mechanical effect of the chemical action of water-rock on rocks involves many subjects and domains with wide application prospect.

水—巖化学作用对巖石力学效应的研究涉及多学科多领域，具有广阔的应用前景。

this reverses the chemical action that produces electricity.

进行与放电过程逆向的化学反应。

「we think that alcohol eliminates the 「living」 bacteria but not the spores, whereas the mechanical action of washing combined with the chemical action of soap eliminates both, 」 explained dr. oughton.

oughton博士解释：「我们认为酒精可以消除「活」细菌，但不能消除孢子，而洗涤的机械作用结合肥皂的化学作用可以消除孢子。」

active coupler: coloring agent to initiate the formation of colour after chemical action .

活性成色剂：化学作用后，引发颜色的色剂。

the jet cuter is similar but uses a jet charge instead of chemical action to cut the tubular.

聚能切割器与化学切割器相似，不过聚能切割器使用聚能弹来切割管子而不是利用化学作用。

the changes of these properties are rooted not only in mechanical action, but also in the prior altering of chemical action in rock and soil.

巖土的物性的变化不仅来源于机械作用，更重要的是来源于化学环境—巖土介质动态系统中化学作用的改变。

the intensity of chemical damage is proportional to the intensity of chemical action in water-rock system.

巖石的化学损伤与水-巖化学反应强度成正比；

furthermore, i if center a chemical action is for a while rushes, also is the tranquil like water for a while, teaches me to be at a loss how to proceed.

再者，我与其中一位的化学作用一时是澎湃的，一时又是平静如湖水的，教我无所适从。

oxide: compound produced when an element has chemical action with oxygen.

氧化物：元素与氧作用而产生的化合物。

the research on mechanical effect of the chemical action of water rock on deformation and failure of rocks involves two aspects of mechanics and chemistry.

水—巖化学作用对巖体变形破坏力学效应的研究涉及力学和化学两方面，也即为地球化学与巖体力学两个研究领域的交叉。