molybdenum 的定义
Chemistry.
- a silver-white metallic element, used as an alloy with iron in making hard, high-speed cutting tools. Symbol: Mo; atomic weight: 95.94; atomic number: 42; specific gravity: 10.2.
更多molybdenum例句
- Locked underground is billions of dollars’ worth of gold, copper and molybdenum, an important alloy in many types of steel.
- Iron and copper ores frequently contain molybdenum, sometimes in quantity; consequently it is met with in slags and pig-iron.
- All molybdenum compounds are converted into the trioxide by boiling with nitric acid.
- Vanadium is white, and when its surface is polished, it resembles silver or molybdenum more than any other metal.
- We noted a similar close resemblance between the positive strontium and the negative molybdenum.
- It consumes a lot in its own steel industry, even using manganese as a substitute for scarcer alloys like nickel and molybdenum.