Many ancient Chinese men of letters left behind beautiful verses about the clepsydra.作为计时器,漏刻的使用比日晷史为普遍.Galileo used a mercury clepsydra to time his experimental falling Bodies.直到16世纪时,迦利略还用水银漏壶为其自由落体实验计时.Water clock : o...
蓝图搞好了 吗 ?Have the blueprints been worked out?这张蓝图有点不准.There is a slight inaccuracy in this blueprint.我们的全部设计还在蓝图阶段, 我们的对手已抢在我们之前预告了他们的新式样了.While all our plans were still in the blueprint stage, our competitors got the ju...
燧石在压力的作用下碎成了小块。Under the pressure, the flint crumbled into fragments.这里的岩石像燧石一样坚硬.The rock here was as hard as flint.这一岩层中有大量燧石.This layer of rock contains a lot of flint....