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Unsymmetrical dimethylhydrazine (UDMH) is a main liquid rocket propellant. There are plenty of toxic and stable contaminations in its wastewater. The harmful influence has been considered. Nowadays the disposal technology of wastewater containing UDMH has plenty of disadvantages, such as high energy consuming, low safety factor, numerous secondary contaminations, strong toxicity, and so on. It is necessary to find a new way for wastewater disposal. Biodegradation technology is low innocuity and cleanliness, has great degradation capacity, and can almost degrade all kinds of organic substances. In this paper the aerobic active sludge is used to treat wastewater containing UDMH which is one kind of biodegradation technology. 相似文献
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日前, 金牛座系统有限公司首次向西班牙空军交付了2枚金牛座KEPD-350导弹, 用于装备其EF-18战斗机. 导弹将与EF-18对接后进行载飞试验. 对接工作在2008年第一季度完成. 西班牙共订购了43枚导弹. 此外, 德国和西班牙还表示有意向在欧洲台风战机上装备金牛座KEPD-350导弹. 相似文献
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在民用市场上,边缘发火式枪弹产品很丰富,但对于发射这类弹的旋转后拉枪机式步枪来说,通常不能在一支枪上兼容发射多种枪弹。然而随着CZ455边缘发火式步枪的推出,这样的限制终于被打破了,其通过更换枪管、弹匣,不仅可以发射0.22英寸LR枪弹,也可以发射0.22英寸WMR枪弹和0.17英寸HMR枪弹。独特结构引人注目CZ 455步枪采用运动步枪的经典线条设计,外形优美、修长,枪托采用 相似文献
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公司发展变迁OAKLEY公司的创始人是吉姆·简纳德,他在创立OAKLEY公司之前,曾是越野摩托车维修技师。那段时期,他最常接触的人就是越野车选手。在与车手们沟通的过程中,他发现车手们在完成高难度技术动作时,所佩戴的风镜会因镜片易起雾或被碎石击中而破损,导致影响视线,甚至伤害眼睛。 相似文献
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In the technical field of reconnaissance, target location, target tracking ancl arms technology, IR sensors are increasingly usecl for making the entire battlefield transparent up to far into the opponents' area. An effective method of neutralizing or obstructing the effect of the IR sensors consists in cutting off the line of sight by smoke systems. The liquid smoke compositions are interested for their low cost, high yield speed and high yield efficiency. 相似文献
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激光反卫星武器攻击方式探讨 总被引:3,自引:0,他引:3
卫星侦察在现代战争中的作用越来越大, 如何有效对抗卫星侦察已经成为各国研究的重点和要解决的难点问题.首先论述了激光武器攻击卫星的方式, 着重探讨在各种攻击方式下影响攻击效果的因素以及攻击时对卫星产生的影响, 最后简述了美俄激光武器的发展现状. 相似文献