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...
...the old image of the insular, xenophobic Brit.孤立保守而又恐外的英国人的旧有形象Xenophobic nationalism is on the rise in some West European countries...西欧一些国家的仇外民族主义有所抬头。Partly because of Chechnya, that mood has become increasingly xe...
退浆混合料都用浸轧机浸敷于织物上.The desizing mixture is applied to the fabric using a padder.退浆方法取决于实际所用的浆料.The method of desizing is dependent on the actual size used.经过退浆和洗涤之后留下的杂质就是自然染色及种子外壳的碎片了.The impurities, which remains after d...
There are hundreds of poisonous spiders and snakes.毒蜘蛛和毒蛇成百上千。When field bunds which planted soybean or kept weeds, spiders density increased in rice field.蜘蛛在稻田的密度在田埂种豆或蓄草条件下增高.One authority made a census of the spiders...