代表非常暗的月食（月球几乎看不见），而4 则代表月球在全食时呈鲜亮橙或铜红色。
The value ranges from 0 to 4 with 0 being a very dark eclipse and 4 a very bright orange or copper-red Moon.
结果显示，釉面颜色随着麦饭石添加量的增加釉面铜红色由浓变淡，釉面硬度随麦饭石添量的增加逐步升高。
The results showed that the color of glaze is changed from dark to light and the hardness is increased with the accession quantity of Huxian wheat-meal-stone.
尤其是那一群绚烂的槭属植物——枫树——它们那发脆的、闪亮的叶子变成了深深的铜红色，在今天灿烂的秋日暖阳里熠熠闪烁。
In particular, a group of glorious acers - maples - whose crisp, shiny leaves have turned such a deep, coppery red that they are positively glowing in the glorious autumn sunshine today.
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