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 %...
The BBB permeability was reflected by Evan's blue ( EB ) extravasation.用Evan’sblue ( EB ) 测定BBB的通透性.Change of brain edema was analyzed by Evans blue extravasation and brain water content.通过观察Evans蓝扩散距离、脑组织含水量的不同两项指标...
塑料涂层能防潮.A plastic coating repels moisture.隔热层必须防潮.The insulation must be protected from moisture.机器包装必须防湿 、 防潮 、 防锈、防震.The machines must be well protected against dampness, moisture, rust and shock....