荧光灯闪了几下，接着屋子里豁然大亮，刺得人睁不开眼。Fluorescent lights flickered, and then the room was brilliantly, blindingly bright.用18瓦的荧光灯灯泡有同样的亮度，而用电量却减少75％。With an 18-watt fluorescent bulb you get as much light but use 75% less electricity...
研究了用酸性乙腈硫酸铜体系从辉铜矿中提取铜.Leaching of copper from chalcocite with acidic acetonitrilecopper sulphate system was studied.除自然铜和孔雀石之外, 还有黄铜矿 、 斑铜矿 、 辉铜矿 、 铜蓝和黝铜矿等.In addition to the natural copper and malachite, there are chalc...
全固态薄膜微电池的研究越来越广泛地引起人们的兴趣.All solid - state thin - film lithium micro batteries are of considerable current research interest.特别是微电子机械系统 ( Micro -ElectronicMechanicalSystems, MEMS ) 技术发展的需要, 微电池已引起人们的重视.Specially, with th...
幼苗通常都会放在冷床里越冬。The young seedlings are usually wintered in a cold frame.保持土壤湿润，那样幼苗就能茁壮成长。Keep the soil moist. That way, the seedling will flourish.我正在移植一些卷心菜幼苗.I'm just going to prick out some young cabbage plants....