20世纪80年代末，当它作为一种纯文本媒介出现时，它被视为一种追求知识而非快乐的工具。
When it emerged towards the end of the 1980s as a purely text-based medium, it was seen as a tool to pursue knowledge, not pleasure.
事实上，在德国人RudolphDiesel发明引擎的19世纪后期，他就有进行了以纯花生油为燃料的早期尝试。
Indeed, one of the early demonstrations shown by Rudolph Diesel, the German engineer who invented the engines at the end of the 1800s, operated on pure peanut oil.
凹凸棒石是一种链层状镁铝硅酸盐矿物，早在19世纪就已被发现，但是至今该矿物在重金属离子吸附机理和纯凹凸棒石酸溶动力学方面的研究仍较少。
Since it was discovered in the 19th century, few attention has been paid on the adsorption mechanism of heavy metal ions to the mineral and kinetics of acid-dissolution of palygorskite.
该区内梅山组泥质岩和晚上新世-第四纪沉积的质纯泥质岩、粘土层为盆地两套区域盖层。
The shale in Meishan formation and the pure shale and argillic horizon of Late Pliocene-Quaternary are the two sets of caprock in the area.
在21世纪，此类活动的持续性将会给人类带来更大的好处：在纯科学领域——更广泛、更深入的了解所有的学习领域。
The continuation of such activities in the twenty-first century will result in even greater advantages to human beings: in pure science - a wider and deeper knowledge in all fields of learning.
伴随着20世纪60年代认知心理学的兴起，视觉选择性注意开始由纯心理学注意研究转向与其它学科相结合进行综合研究。
With the rise of cognitive psychology in 1960s, the study of visual selective attention began to integrate with other subjects from the Angle of simple psychology.
在下一世纪中，许多国家的科学家尝试制造较纯、味道较好的柳树皮药粉。
Over the next century, scientists in many different countries tried to make a purer and more pleasant 1 version of willow bark powder.
断裂带在晚白垩世-早第三纪的伸展活动中，软流圈进行了强烈的上隆，岩石圈出现了显著的细颈化，属于纯剪切伸展模式。
During extensional activities of Late Cretaceo us to Eogene, intense upwelling of asthenosphere happened under the fault zone, leading to lithospheric necking in pure shear mode1.
断裂带在晚白垩世-早第三纪的伸展活动中，软流圈进行了强烈的上隆，岩石圈出现了显著的细颈化，属于纯剪切伸展模式。
During extensional activities of Late Cretaceo us to Eogene, intense upwelling of asthenosphere happened under the fault zone, leading to lithospheric necking in pure shear mode1.
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