... 难磁化物质 hard magnetic material 硬算符hard operator 硬光子;高能光子 hard photon ...
双语例句
1
The youngest operator is 27 years old, the oldest has been working here from 1974. The work is said to be hard, particularly the psychological aspect.
最年前的接线员只有27岁，最老的从1974年开始工作至今，据说工作很艰难，尤其是心理方面。
2
It's hard to do this well if you've never been an operator.
这很难做到，如果你曾经没有运作过公司。
3
The traditional methods, such as optical reference method, enclosed ruler method, are hard and dangerous to operator, and their measuring efficiency is low.