The WS-Transaction specification describes two coordination types, one called atomic transaction (at) and the other called business activity (BA).

WS - transaction规范描述了两种协调类型，一种是原子事务(atomic transaction, at)，另一种是业务活动(business activity, BA)。

youdao

After processing the status response to the Commit (from the Atomic transactions section, Step 11), the business task then registers with the business activity.

业务任务向业务活动注册在处理完对Commit(来自原子事务部分，第11步)的状态响应之后，业务任务接下来就向业务活动注册。

youdao

A transaction is a unit of activity within which multiple operations on data can be made atomic (indivisible), such that exactly all or none of the actions are made permanent.

事务是一个活动单元，其中数据的多个操作可以被原子化(不可分)，精确地说就是所有的活动都是永久的，或者没有一个活动永久的。

youdao

Europe has just put through the International Atomic Energy Agency a demand that Iran suspend all nuclear activity pending a Nov. 25 meeting on sanctions.

FORBES: Iraq Again?

The discovery of quantum mechanics and Einstein's theory of relativity, vital to much of modern technology and economic activity, including the transistor, the laser and the atomic bomb.

ECONOMIST: Letters

The so-called stress tests will be performed on Europe's 143 working reactors and other atomic installations and will consider a range of factors, including seismic activity, flooding, and power loss at reactors.

BBC: MEPs split over nuclear 'stress tests'