The chemical change off heat and light.

New material can be brought about through chemical change.

通过变化可以生成新的物质.

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Whenever a chemical change takes place, There is a new substance formed.

每当发生化学变化时, 就有一种新的物质生成.

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When rust is formed, a chemical change has taken place.

当锈生成时, 就发生了化学变化.

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We saw that a chemical change had taken place.

我们看到已发生了化学变化.

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Heat and light can be given off by this chemical change.

这种化学反应能放出热和光.

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A chemical change takes place in paper when it burns.

纸燃烧时就发生了化学变化.

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Wherever a chemical change takes place , there is a new substance formed.

每当发生化学反应, 都会产生新物质.

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The chemical change absorbing heat is named an end – thermal reaction.

吸收热量的化学反应被称为吸热反应.

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A chemical change takes place in any substance when it burns.

物质燃烧时产生化学变化.

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This chemical change can be expressed by an equation.

我们可用反应式表示这种化学变化.

词典精选例句

The chemical change gives off [ out ] heat and light.

这类化学变化发出 热乎 光.

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The chemical composition and casting technology of the lining were described also.

同时还介绍了该衬板的化学成分和铸造工艺.

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Choice having introduced the hammerhead and cleading chemical composition.

介绍了锤头和衬板化学成分的选择.

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The chemical composition of the pyrolytic oil was clearly known this way.

由此,全面了解了热解油的族分组成和化学组成.

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Here is the report of chemical composition inspection.

这是化学成份检验报告.

口语例句

The infrared spectra ( IRS ) are measured for chemical composition of series gallstones.

用红外光谱法测量了系列胆结石成分的红外光谱.

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The influence of chemical composition on austenitizing temperature was introduced.

介绍化学成分对奥氏体化温度的影响.

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So that chemical composition tends to coordinate of upper leaf.

使上部叶化学成分趋于协调.

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Heat reacts on certain substances to change their chemical composition.

热能作用于某些物质,使其改变化学成分.

词典精选例句

Scientists are predicting long-term changes in the chemical composition of the atmosphere.

科学家预测大气的化学成分将会有 长期 改变.

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