SEM observation showed that the surface of 1420 Al-Li alloy turn colors, and rust spot become bigger after salt corrosion.
电镜扫描观察发现,1420铝锂合金锈点直径较大,且连成片,表面明显变色。
The maple trees turn brilliant red in autumn, adding another dimension to the colors in the harvest season.
枫叶在秋天变成了鲜红的颜色,为丰收的季节增添了另一抹色彩。
We know the process takes between 12 and 24 hours, but not how the different petals turn out different colors。
这一过程耗时12至24小时,但不同的花瓣如何呈现出不同的颜色,就不得而知了。
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