Explain why barium forms peroxide but beryllium does not.解释为什么钡能形成过氧化物而铍则不能。However the toxic properties of beryllium limit its application.然而铍的毒性限制了它的作用.Toxicity problem in manufacturing and storage might be alleviated ...
Amorphous beryllium hydride , as ablator, can increase conversion from laser to X - rays .非晶 BeH2 材料作为烧蚀层, 掺入高Z元素后可以提高激光 -X 光的转换效率.Toxicity problem in manufacturing and storage might be alleviated by coating beryllium wi...
Other recommendations relate to the details of how such data is stored.其他建议涉及此类信息储存方面的一些细节。Afternoon groups relate to the specific addictions and problems therein.下午的小组谈到具体的上瘾病例以及其中的问题。These people, usually men, seem una...
Furthermore, externalities are also present.而且, 也出现了外在化问题.The third involves the undesirable externalities that may accompany productivity increases.第三是伴随生产率提高而产生的不良的外部影响问题.As we saw earlier, the market mechanism breaks ...
用镊子拔掉蜜蜂的螫刺。Remove the bee sting with tweezers.蜜蜂的螫刺应该用小镊子拔出来.Bee stings should be removed with tweezers.正如养蜂人与蜜蜂的关系一样,我们本能地懂得如果我们不把自己生活中重大事件告诉它的话,不幸的事情就会袭击我们.We know instinctively, just as bookeepers with their bees that...
Sam understands tacitly . He hoists his cup saying.山姆心领神会,举起酒杯.Long - term supply of imports, domestic second - hand car hoists.公司 长期 供应各种进口, 国产 二手 汽车吊.Patterson hoists Becky onto the table.Patterson抱 起Becky放到桌子上....
这节诗描绘了春天来临的三个征兆。This verse describes three signs of spring.忽略早期征兆可能会导致疾病。Ignore the early warnings and illness could result.树上的萌芽是春天来临的征兆.Buds on the trees are a sign of spring....