For a year and a half, wage restraint on a voluntary basis worked.在一年半的时间里，自愿实行的限薪措施奏效了。The union said it was unfair to ask workers to adopt a policy of wage restraint.工会称要工人接受工资限制政策是不合理的。For a year, wage restraint on a voluntary basis worked.一年之间，自愿基础之上的工资调控发挥了作用。