Carbonic acid can be made into dyes and disinfectants.石炭酸可作染料、消毒剂等的原料.Alkylphenol ethoxylates ( APEs ), common in detergents and disinfectants, are suspected hormone disruptors.烷基酚聚氧乙烯 ( APE ) 类:俗称乙醇盐, 常用清洁剂和杀菌剂, 是一种可能破坏...
Ecologists argue that the benefits of treating sewage with disinfectants are doubtful.生态学家认为用消毒剂处理污水是否有益值得怀疑。Other substances used to prevent disease or infection include disinfectants and germicides.用来预防疾病或感染的其它物质有消毒剂和灭...
梭子在经线中来回移动.The shuttle moves backwards and forwards through the warp.同一经线上的地方其经度相同.Every place on the same meridian has the same longitude.经线均为通过两极.Meridians are great circles passing through both poles....
He's the best opponent I've come across this season, a great player.他是我本赛季遇到的最出色的对手，一位了不起的运动员。He sat glowering at his opponent.他坐在那里怒视著对手.He wheeled and faced his opponent squarely.他转过身来面对着他的对手。He knocked his o...
放大器自激振荡的频率就取决于流体的速度.Amplifier self - oscillates at a frequency depending on the velocity of the fluid.我们从经验观点来介绍运算放大器.We will approach the op - amp from an empirical point of view.它是三极管放大器的等效电路.It is the equivalent circu...