With the depletion of fossil fuel resources and the soaring prices of crude oil, the production of petrochemicals from fossil fuel as raw materials has been a severe challenge.
随着石化资源的不断枯竭和石油价格的飞涨，以化石资源为原料的化学品生产受到了严峻的挑战。
Climate change poses a severe challenge to the Asia-Pacific region, but the region also has unique strengths in tackling it.
在应对气候变化上，亚太地区既面临严峻挑战，也拥有独特优势。
However, CRT has been met with some severe challenge from many new flat - panel display devices because CRT has some serious defects such as a greater bulk and a heavier weight and so on.
由于存在着体积大、重量重等固有的严重缺陷，CRT器件也一直受到众多新型平板显示器件的严峻挑战。
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