铅

• Negative plates generally used litharge as the lead oxide material .
  负极板一般用氧化铅做活动性物质材料。
• If more bentonite clay is used, the lead temperature must be decreased .
  如果多用膨润土，铅的温度必须降低。
• Common ceramic elements are barium titanate and lead zirconate-titanate .
  普通的陶瓷元件分别是钛酸钡和锆钛酸铅。
• Captain sellers introduced the tap of bell as a signal to heave the lead .
  赛勒斯船长提出了以敲铃为抛测铅的办法。
• For small models we can use as weights containers filled with lead shot .
  对于小模型，可用装满铅丸的容器作为砝码。
• The former was of gold and sharp pointed, the latter blunt and tipped with lead .
  一支是尖头金的，另一支是钝头铅的。
• Before the wide spread adoption of contact process, the chamber process was used .
  在接触法普遍采用之前，使用铅室法。
• The cell contains two types of silicon spheres about as big as buckshot .
  这种电池装有两种大约有头号铅弹那样大的硅球。
• Moreover, there is still a third compound, red lead, the well-known paint .
  此外，还有第三种化合物：红铅，是人们熟悉的颜料。
• A lead plate crosses the chamber and evidently the particle has passed through it .
  一块铝板横放在云室中，显然有粒子穿过铅板。