PAPER EMPTY LED 附有检测纸张有无的传感器
This paper presents the function of the LED lamp standard.
本文介绍了 LED 灯柱的功能。
In the early years it led to a paper presenting evidence that yes, under the same conditions, plots with more species of plants eventually tend to yield more biomass than plots with fewer species.
实验早期发表的论文显示的证据说明,在相同条件下,含有更多种植物的试验田最终的确比含较少物种的试验田生产出更多生物质。
For example, it turned out that adding too little cotton led to flaky and unevenly coloured paper.
例如他们发现,如果添加的废棉纱过少,纸张就会薄而易碎而且色泽不均。
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