colour change

基本解释

The team said the interaction between the gold nanoparticles and melamine causes a dramatic colour change in tainted milk.
研究组说当黄金纳米颗粒与污染牛奶中三聚氰胺相遇就会发生颜色变化。
Under proper conditions, it can efficiently enhance the colour fastness of the fabric dyed with water soluble dyes and after fixation little colour change will occur on the dyeings.
该固色剂在适当的条件下能有效地改善水溶性染料的染色牢度，固色后基本无色变现象。
In several reactions a colour change indicates the formation of new products. For example, green copper carbonate reacts, when heated, to form black copper oxide and carbon dioxide gas.
在一些反应中颜色会发生变化，它表明产生了新的物质，例如，绿色的碳酸铜在加热时会分解为黑色的氧化铜和二氧化碳气体。
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At this stage, however, using the protein that way could turn reading into a truly electrifying experience: a charge of about 4, 000 volts is needed to trigger the colour change.
ECONOMIST: Showing off
The next stage, currently still in the laboratory, is to develop coatings that change colour when they absorb toxic chemicals, thus alerting soldiers that they are under chemical attack.
ECONOMIST: Monitor: A good kind of gas-guzzling The