In 1918 the Radium Institute, whose staff Irène had joined, began to operatein earnest, and became a centre for nuclear physics and chemistry.
1918年，员工艾琳加入的镭研究所开始认真运作，并成为核物理和化学中心。
2
For example, early models of high-speed railroad cars loaded with sophisticated controls were unable to operatein a snowstorm because a fan sucked snow into the electrical system.