manual telephone造句

例句与造句

1. Methods of test for toll manual telephone switching equipment
   长途人工电话交换设备.测试方法
2. The specification and test methods for manual telephone system for railway
   铁路人工话务系统设备技术要求和试验方法
3. It's difficult to find manual telephone in a sentence. 用manual telephone造句挺难的