But since then plummeting prices for virgin paper, plastic and fuels, and hence also for the waste that substitutes for them, have put an end to such visions.
但随着纸5、塑料、燃料价格下跌，可替代他们的垃圾价格也随之下跌，这种想法也就中断了。
Advocates of recycled toilet paper point out that converting virgin pulp to toilet paper requires more water than recycled paper and makes use of the tons of already used paper that fills landfills.
再生厕纸的支持者指出用原生纸浆造纸的耗水量比用再生纸多，而且再生纸能利用垃圾场中填埋的成吨废纸。
Based on the analysis of fire scars, the fire history of the Daxing 'an mountains' virgin forests is studied in this paper.
通过对火疤木的调查与分析，研究了大兴安岭北部原始林区的森林火历史。
The paper tends to reveal the divinity theme of Holy Virgin Mary in the Garden in the Renaissance through appreciation of related works.
文章通过对此方面作品的赏析，来揭示文艺复兴时期园中圣母的神性主题。
The paper industry USES 40% of commercially produced wood, and 17% of the wood used to produce printing or writing paper comes from virgin forest that contains centuries - old trees.
其实造纸业将消耗将近40%的工业用木头，17%的木头被用来制造打印纸和手写纸，这其中用到的原木甚至包含了一百年以上的树木。
The paper concerns in virgin Korean pine forest, after sanitation cutting, the herb increases 59.1%, the shrub decreases 50.95%, the litter decreases 24.58%.
本文揭示了红松原始林卫生清理后，绿色草本植物数量增加了59.1%，矮小灌木数量下降了50.95%，枯枝落叶层含量下降了24.58%。
This paper describes the application of numerical analysis in gas emission prediction in virgin zone of a mine.
介绍了数字分析在矿井瓦斯涌出量预测中的应用。
This paper describes the application of numerical analysis in gas emission prediction in virgin zone of a mine.
介绍了数字分析在矿井瓦斯涌出量预测中的应用。
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