chemical change的例句大全

This chemical change can be expressed by an equation.

我们可用反应式表示这种化学变化.

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.

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

当锈生成时, 就发生了化学变化.

We saw that a chemical change had taken place.

我们看到已发生了化学变化.

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

这种化学反应能放出热和光.

A chemical change takes place in paper when it burns.

纸燃烧时就发生了化学变化.

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.

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.

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

物质燃烧时产生化学变化.

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

这类化学变化发出 热乎 光.

New material can be brought about through chemical change.

通过变化可以生成新的物质.

When two or more elements combine and form a compound, a chemical change takes place.

当两种或两种以上的元素结合形成化合物时，发生化学变化。

Microorganisms are the agents that bring about the chemical change.

微生物是引起化学变化的作用者.

The chemical change off heat and light.

这种化学变化发出热和光.

A chemical change always results in forming at least on new substance.

一种化学变化总是产生至少一种新物质.

Discussion on law of chemical composition change of electroslag remelted steels for hi pressure boiler tube making

电渣重熔高压锅炉管用钢化学成分变化规律的探讨

The numerical results show excellent agreement with the analytical solution to flame structure when the effect of heat release due to chemical reaction and the change of density are not to be considered.

当不考虑释热引起密度变化时，数值解与相应的解析解符合较好。

Studies on change of main chemical components of burley tobacco during air curing process

不同晾制阶段白肋烟主要化学成分的变化

A continuous extraction method was adopted to analyze the chemical forms of arsenic ( As) in soil, and the content change of As with different forms were compared when the additives were added.

采用连续提取法对土壤中砷的化学形态进行分析研究，比较加入不同改良剂时砷的各种形态含量的变化。

Analysis on chemical form and content change of arsenic ( As) in contaminated soil

被污染土壤砷的化学形态与含量变化分析研究