trial operation

• 试运行

trial operation的用法和样例：

例句

1. The trial operation results show that the measures are feasible.
   多次的试运行结果表明改进措施是可行的。
2. The Transportation Security Administration today announced the program will begin as a trial in Minneapolis this month.
   交通运输安全局今天宣布该项目本月将在明尼波尼斯试运行。