Any of a series of chemically similar, radioactive elements with atomic numbers ranging from 89 ( actinium ) through 103 ( lawrencium ).锕类任何化学性质相似, 原子序数在89 ( 锕 ) 与103 ( 铹 ) 之间变化的放射性元素.The extraction mechanism and separat...
请你邮寄这个小包裹算是利用你 吗 ?Would it be an imposition to ask you to mail this parcel?请你替我把这个小包裹捆一下好 吗 ?Will you do up this parcel for me?几个青年妇女把掉在水里又捞出来的小包裹,丢给了他们.The women rescued their bundles which had fallen into the water and...
Barry resigned his directorship in December 1973.巴里于1973年12月辞去了他的董事之职。I felt the December air slither down my leg.我感觉到十二月的冷风沿着腿直往下钻.The ensuing December days brought to Clyde some pleasing and yet complicating and distur...
每吨矿砂的净利达20美元.The net profit amounts to 20 dollars per ton of ore.他们分析了矿砂,从中发现了铁.They analyzed the ore and found iron in it.日平均产量为一千三百七十吨矿砂.The average daily throughput was 1 , 370 tons of ore....