在恶劣的自然环境下,积污绝缘子随时可能发生闪络.Polluted insulators may flashover at any time under disadvantage weather conditions.实验表明表面电荷积聚使得绝缘子沿面闪络电压的降低竟然达到23.4%.For the insulator investigated the 50 % flashover voltage is reduced by 23.4 %...
自封的公共道德的卫道士a self-appointed custodian of public morals她是个有道德的女性,人人都尊敬她.She was such a virtuous woman that everybody respected her.他把每个论题都变成了道德的讨论.He turns every subject into a moral discussion....
这部记录片生动地再现了这场伟大的战役.This great battle was vividly recorded in the documentary film.这部记录片探讨这个问题有些深度.The documentary treated the question in some detail.他是这部记录片的解说员.He is the narrator of the documentary....
the topography of an area某地区的地形Landforms of topography, vegetation and climate are influential factors in formation of soils.地形或地形学 、 植被和气候都是对土壤形成有影响的因素.Two types of keratoconus after PKP have remarkable divergence of po...