单词：lead-silver solder
单词：lead-silver solder 相关文章
1555 、 制作过程 workingprocess 1556 、 制作图；工作图 workingdrawing 1557 、 制造方法 productionmethod 1558 、 制图；绘图 drawing 1559 、 诱导抗力 induceddrag 1560 、 辅助
英文名句短语
在这次节目里我们要给大家讲两个习惯用语。一个跟银子，就是英文里的silver这个字有关。另一个是以铅，就是lead这个字为主。 我们现在来讲第一个。To be handed something on a silver platter. To be
美国习惯用语
U.S. Secretary of State John Kerry has met with Palestinian President Mahmoud Abbas to discuss the unabating violence in the West Bank and Jerusalem. Six months of Palestinian attacks on Israeli civilians, police, and soldiers have left nearly 30 Isr
英语新闻
The Winkies lifted him tenderly in their arms, and carried him back to the Yellow Castle again, 那些温基人，轻手轻脚地，把他扶起在他们的手臂上，抬着他跋涉着回到黄色的城堡里， Dorothy shedding a few tears by the
绿野仙踪.The.Wizard.Of.Oz
Absurdly, he was excluded from a 1971 National Research Council panel appointed to investigate the dangers of atmospheric lead poisoning even though he was by now unquestionably the leading expert on atmospheric lead. 荒唐的是，一个美国研究委
万物简史
10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur
万物简史