Boron - substituted polyaromatic mesophase prepared by co - pyrolysis of a tar pitch with pyridine - borane complex under autogeneous pressure.以煤焦油沥青和吡啶硼烷为原料采用加压热缩聚工艺制备硼取代聚芳烃中间相沥青.A new syntan product prepared with tar p...
It was survivals of the mediaeval sanctuaries.它是中世纪庇护所的遗风.All of these are the survivals of feudalism and capitalism.所有的这一切都是封建主义和资本主义再现.Yet, survivals can suffer brain damage.但是生还者仍然可能遭受大脑损伤....
Methods The effects were se en by using RPI and F tests.方法 通过目测利用相关密度指数(RPI)和F测验的方法.F: How about pouring hot water on the anthills?弗兰克: 那在蚁丘上倒热水你觉得怎么样?Some will seek'status'through renewed acquiescence and Uncl...
She watched the colour drain from Colin's rubicund face.她看见科林原本红润的脸渐渐失去了血色。His rubicund face expressed consternation and fatigue.他那红通的脸显得又惊惶又疲乏.rubicund cheeks红红的脸颊Passepartout, usually so rubicund, was fairly white...