a metal造句

• An oven thermometer uses a metal strip .
  加热炉用金属丝作为温度计。
• Electrons in a metal come out of the surface .
  金属中的电子逸出表面。
• An amalgam is a solution of a metal in liquid hg .
  汞齐是金属在液态汞中的溶液。
• A base is the hydroxide of a metal .
  碱是金属的氢氧化物。
• A metal has a crystalline structure .
  金属具有晶体结构。
• Historically, wafers were waxed onto a metal plate .
  过去片子是用石蜡固定到金属板上。
• Perhaps there is a metal ring, and the ring has to go on a tube .
  也许有一个金属圈必须套在一根管子上。
• To detach an electron from a metal it must be given energy .
  要想从金属中析出一个电子，必须给电子能量。
• Her electroscope was a metal case with two holes in its side .
  她的验电器是一个金属盒子，旁边有两个小孔。
• The analysis chamber consists of a metal block which houses an annulus .
  分析室由金属块组成，内装一个环。
• The simplest calorimeter is a metal vessel used with a thermometer .
  最简单的量热计是一个带温度计的金属容器。
• The mosaic consists of a metal plate covered with insulating material .
  嵌镶光电阴极由涂有绝缘材料的金属板组成。
• The "smoothness" of a metal surface depends on the wavelength of the radiation .
  金属表面的“光洁度”与电磁辐射的波长有关。
• The atoms themselves are firmly held in place in the crystal structure of a metal .
  原子本身被紧紧束缚在金属的晶体结构之中。
• The electron is able to travel through the crystal as easily as through a metal .
  这个电子像穿过金属一样很容易在晶体中迁移。
• It strictly means that the copies are made from an image on a metal plate .
  技术上从严来说，这些印件是按金属印版上的图像制成的。
• The oldest stars in the galaxy exhibit a metal deficiency relative to hydrogen .
  银河系中最年老的恒星表现出一种对氢而言的贫金属性。
• They won't set off a metal detector, nor do they have any distinguishing silhouette .
  它们不会触发金属探测器，也没有任何可以识别的外形轮廓。
• I was supposed to drop each ticket that i took from a customer into a metal receptacle .
  我的工作就是把从顾客手中收来的每张票都扔在一个金属箱子里。
• An instrument of the second type makes use of a metal reed kept in vibration by an electromagnet .
  还有一种类似的装置，由电磁铁维持金属簧片不断振动。