This is not the first time that prices for recovered materials have fallen sharply in this way; the same thing happened in the 1990s and prices recovered within two years.
回收再利用材料的价格并不是第一次这样急速下降；同样的事情在20世纪90年代也发生过，但在不到两年的时间里又回升到了原点。
Many useful substances are now recovered from materials which used to be thrown away.
现在可以从过去往往被丢掉的东西中提取许多有用物质。
As prices of raw materials uprising, margins of main synthetic fiber materials recovered except polyester and acrylonitrile.
随着原料价格上涨，除聚酯及丙烯腈外，主要合纤原料的毛利水平有所好转。
Local waste recovery continued to play an important role in waste management, resulting in the export of substantial quantities of recovered waste materials for recycling overseas.
废物回收在本港的废物管理方面继续发挥重要作用，使废料得以大量收回，输往外地循环再造。
The rural refuse was mainly composed of compostable waste and recyclable materials, 17% of the latter could be recovered by present recycle market.
生活垃圾组成以可堆肥物和废品为主，废品类垃圾中可通过现有回收市场分流的占17%。
The materials parameters are not recovered from the dispersion curves but rather directly from the transient surface displacement.
进而直接从瞬态位移波形反演得到了材料的参数。
Respective raw materials obtained in this process is crushed to a given size or less to be recovered as the raw materials.
以及把在该工序中得到的各种原材料粉碎成小于等于预定值的大小，作为上述原材料来回收。
The unreacted raw materials, intermediate products and solvent could be recovered and recycled. No severe environmental pollution problem encountered.
对未反应完全的原料、中间体及反应中使用的溶剂进行了回收和循环利用。
The amount of zinc emitted from blast furnace with gas ash was 96.14% (in mass). Therefore BF gas ash isn′t appropriate to be recovered as the sintering materials.
支出项中，由瓦斯灰带走的锌量最多，占总支出量的96.14%，应严格控制各级除尘灰进入烧结系统。
The amount of zinc emitted from blast furnace with gas ash was 96.14% (in mass). Therefore BF gas ash isn′t appropriate to be recovered as the sintering materials.
支出项中，由瓦斯灰带走的锌量最多，占总支出量的96.14%，应严格控制各级除尘灰进入烧结系统。
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