| met. | 归还 | replace (It is generally reckoned that molybdenum has twice the 'power' of tungsten, so that a steel previously containing 18 per cent tungsten could be replaced by one with about 9 per cent molybdenum. 一般认为：钼的能力是钨的两倍。因此，过去含有 18% 钨的钢，现在可以用含有约 9% 钼的钢来代替。) |
