Another large environmental challenge facing China is water,which is essential for fracking and steam-assisted recovery of heavier oils.
一般而言,重质的耐火材料比较侧重某一技术性能指标,如高温稳定性、化学稳定性等;.
In general, heavy refractory materials focus on a certain technical performance index, such as high temperature stability, chemical stability, etc.;
重质碳酸钙由于相对杂质较多,因此产品白度一般为89%~93%,极少数的产品能达到95%;.
Because heavy calcium products are relatively more impurities, the product whiteness is generally 89% to 93%, and very few products can reach 95%.
这些化合物常常会出现重质人造颗粒的衰变,如粒子加速器,核反应堆和宇宙射线中发现的那些化合物。
These compounds often turn up in the decay of heavy man-made particles, such as those in particle accelerators, nuclear reactors, and cosmic rays.
一般而言,重质的耐火材料比较侧重某一技术性能指标,如高温稳定性、化学稳定性等;.
In general, heavy refractory products are more focused on a certain technical performance index, such as high temperature stability, chemical stability, etc.
阿尔伯塔省的石油生产商面临管道瓶颈,导致西加拿大精选重质原油价格大幅降至美国基准原油价格。
Oil producers in Alberta face pipeline bottlenecks that result in very bigprice discounts for Western Canada Select heavy crude to U.S. benchmark crude.
最后,轻质原油和重质原油之间的价差已经缩小,使俄罗斯的轻质原油与沙特重型原油的竞争更加激烈。
Finally, spreads on the market between light and heavy crude have narrowed, making Russia's lighter crudes more competitive against Saudi heavy crudes.
尽管净出口显示了对进口的依赖减少,但美国仍继续从其他国家购买重质原油,以满足其炼油厂的需求。
While the net exports show decreasing reliance on imports,the United States continues to buy heavy crude oil from other nations to meet refinery needs.
然而,对于投资延迟焦化装置的炼油厂,重质原油可以产生大量中间馏分(汽油,柴油和喷气燃料)。
For refineries that have invested in delayed coking units,however, heavy crudes can yield large volumes of middle distillates(gasoil, diesel and jet fuel).
主要购买伊朗重质原油的亚洲国家在2011年后增加了从沙特阿拉伯和科威特购买的类似原油等级。
Asian countries, which were mostly purchasing Iranian heavy crude oil, increased their purchases of similar crude grades from Saudi Arabia and Kuwait after 2011.
近期,大阪大学的研究人员证明,激光压印在由硬质和重质材料制成的核聚变燃料的胶囊上的微扰得到了缓解。
Osaka University-led researchers demonstrated that the perturbation of laser imprinting on a capsule fornuclear fusion fuel made from stiff and heavy materials was mitigated.
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