watch spring造句

• Horology . watch spring - barrel springs . quality classes
  钟表业.手表弹簧锁定装置的发条.质量分类
• A die plate for flattening metal into strips , as in the manufacture of watch springs
  扁条拉模一种用来拉平钢条的模板，如用于生产手表发条的模板
• But someone else will make swiss watch springs from that five - dollar block of steel . do you know what that worth is
  他用来做瑞士手表的弹簧，你知道它的价值吗？
• Elinvar is a trademark for a kind of nickel - chromium steel used for watch springs because its elasticity is constant over a wide range of temperatures
  埃林瓦是一种用于手表弹簧的镍铬钢，因其能在很大的温度范围内保持一定的弹性。