molybdena

例句：

1. 1. The mineral molybdena is used in the productionof steel.
   钼这种矿物用于生产钢铁。
2. 2.The molybdena crystals areknown for their beautiful color and clarity.
   钼的晶体因其美丽的颜色和透明度而闻名。
3. 3. The molybdena mine isa significant source of molybdenumfor the region.
   钼矿是该地区重要的钼来源。