The big no-no is a grounded source using a referenced single-ended system.

应用最为广泛的是采用单端基准带系统的接地信号源。

youdao

Human language is productive, an open-ended communication system, whereas no other communication system has this property.

人类的语言是多产的，是一个开放的交流系统，而其他交流系统都没有这种特性。

youdao

This transaction ended with the system waiting for the applicant to fill out the request and submit it.

这个事务处理以系统等待申请者填写请求和提交请求为结束。

youdao

We would see all other taxes ended before we surrender any part of the protective tariff system."

VOA: special.2010.05.27

The IoD report says under an open-ended system, a graduate tax becomes the student loan you never pay off and would be "a tax on effort and merit".

BBC: Graduate tax 'could hit UK's competitiveness'

The Absent Teacher Reserve pool was established in the 2005 teachers' contract, when forced job-placement within the school system ended.

WSJ: City Moving to Strengthen Teacher Pool

When the Bretton Woods system ended in 1971, the United States had run a current account surplus every year since 1960.

FORBES: Mind-Bending Idiocy Is The Reason We Don't Have A Gold Standard Today