送交者: HunHunSheng 于 2006-5-10, 10:03:20:

回答: 那个应该是个“收音机” 由 eng 于 2006-5-10, 09:56:01:

It could be pre-programmed to generate a idnetical number at both places at the same time. As long as
timing is good, it will work

• you are right. - eng (60 bytes) 2006-5-10, 10:40:51

加跟贴