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...
子女身上遗传了父母双方的基因型板。The offspring contain a mixture of the genetic blueprint of each parent.脱氧核糖核酸是存在于每个细胞内的基因物质，它承载从头发颜色到致癌风险等各种遗传型板。DNA is the genetic material inside every cell that carries the blueprints for everything ...
工作时周围环境温度恒定有多么重要呢？How important is it to have an even temperature when you're working?温度通过热传导变得一致，直到最终达到恒定状态。Temperature becomes uniform by heat conduction until finally a permanent state is reached.那栋砖砌的房子里全年温度恒定。T...