The producing technology ofp - dichlorobenzene especially the catalysts are described in this thesis.本文介绍了国内外对二 氯苯 生产技术特别是催化剂方面的最新进展.The p dichlorobenzene and naphthalene in mothproofing agent was determined by infrared ...
Mali is the cradle of some of Africa's richest civilizations.马里是非洲一些最悠久的文明的发祥地。The African half of the audience was mainly from Senegal or Mali...观众中有一半是非洲人，其中大多数来自塞内加尔或马里。Unusually heavy rains are also affecting pe...
希腊生产耐火级铬铁矿石已有百余年历史.Greece has been producing refractory grade chromite ore for more than a hundred years.许多由沙漠侵入这些牧场的灌木种都是耐火的.Many of the desert scrub species that have invaded these ranges are fire intolerant.硅酸铝 ( 陶瓷 )...
The twilight had turned to a deep blackness.暮色渐浓，变成了漆黑一片。the inky blackness of the cellar地窖里的一片漆黑A terrifying scream in the blackness of the night made my blood run cold.黑夜里一声可怕的尖叫让我毛骨悚然....
She has a chauffeur-driven limousine.她有一辆由私人司机开的豪华轿车。He wrested the suitcase from the chauffeur...他从司机手里抢过手提箱。In one driveway a chauffeur wearing rubber boots was hosing down a limousine.其中一条私人车道上，一位穿着橡胶靴的专职司机正用水管冲洗一辆豪华轿...