relaxations的例句（relaxations在句子中的用法）

• We develop several formulations of the maximum failure cost problem and present relaxations for them. 我们建立了几种最大失灵成本的模型并讨论他们的松弛问题.
• Playing the paino is one of his favourite relaxations. 弹钢琴是他最喜爱的消遣之一.
• Playing the piano is one of his favourite relaxations. 弹钢琴是他喜爱的一种消遣.