大家都搜:
铁器周期
1、cerium period───铈周期
2、pay period───发工资期;[劳经]工资结算期
3、iron───vt.熨;用铁铸成;n.(Iron)人名;(英)艾恩;adj.铁的;残酷的;刚强的;n.熨斗;烙铁;坚强;vi.熨衣;烫平
4、trial period───受审期,试用期
5、averaging period───[统计]平均周期
6、cretaceous period───白垩纪
7、period───n.周期,期间;时期;一段时间;经期;课时;句点,句号;adj.某一时代的
8、billing period───账单收费期;结算期
9、acclimation period───缋化周期;n.驯化周期
1、During the Spring and Autumn Period, the agricultural production was highly subject to the seasonal changes with the invention of iron tools, thus forming the concept of Solar Term.───春秋战国以后随着铁制农具的出现,农业生产对季节性的要求更高了,就逐渐形成了节气的概念。
2、Iron ore prices on the spot market – for immediate delivery – more than doubled over the period, although they have since fallen back.───在现货交易市场,以即买即付形式交易的铁矿石的价格翻了一翻(虽然现在价格开始回落)。
3、The planet orbiting Kepler 10, by contrast, has an orbital period of a mere 20 hours and is so dense that it is probably made of iron.───相比之下在开普勒-10轨道中发现的那颗行星其轨道周长只有20小时,而且密度很高以至于研究员估计行星内部是由铁组成的。