This paper introduces this particular technology for recycling and using the waste cold energy so as to achieve energy conservation and environmental protection and to expand LNG industry chain.

文章介绍通过特定的工艺技术将这部分浪费的冷能进行回收和利用，可以达到节能环保以及拓展lng产业链。

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At the same time, other students in the same class already have the skill down cold, so further practice for them is a waste of time.

同时，同一个班级的其他学生可能已经熟练掌握了这项技能，所以继续练习对他们来说只是浪费时间。

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The appearance of more radioactive soil at Hanford illustrates the difficulties the federal government faces in cleaning up nuclear-waste sites, many of them the legacy of Cold War-era research.

WSJ: Toxic Radioactive Find Adds to Hanford Cleanup Woes

In 2009, the company shed weight from its foam hot cup and plastic cold cup which reduced the amount of cup waste winding up in land fills by 4.6 million pounds per annum.

FORBES: Dunkin' Donuts Gets Set To Run On Clean Palm Oil