powdered boron造句

• But the vaporization of magnesium suggested an alternative method : we could seal a piece of magnesium and some powdered boron inside a tantalum vessel , which is inert , and subject them to a temperature high enough to melt but not to boil the magnesium ( say , 950 degrees c )
  不过，镁的汽化却也启发了另一种方法：我们可以将镁及一些粉状的硼密封在钽瓶中（钽为惰性元素） ，然后将它们加热至足够的温度（例如950 ） ，使得镁呈现熔化但尚未沸腾的状态。