"Parents may teach their kids," he says, adding that his group will soon publish another paper examining this facet of the study.
“父母可能教给孩子,”他说,并补充说他的团队不久将发表另一篇论文来检验这方面的研究。
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。
To qualify for the tax credit, paper companies started adding diesel fuel to “black liquor”, a pulp-making byproduct that they were already using to generate electricity on its own.
而造纸企业正是利用了这项法案,在“黑液”中加入柴油。 黑液是纸浆生产中的一种副产品,造纸厂早已用它来发电。
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