Enter activity-centered services and active objects.
引入以活动为中心的服务和活动对象。
No question, using BPEL is the "easiest" implementation approach of activity-centered services.
毫无疑问，使用BPEL是以活动为中心的服务的“最容易”实现方法。
As a result, a generic object model for activity-centered services has emerged along these lines.
因此，以活动为中心的服务的通用对象模型已通过以下代码行浮现出来。
The infrastructure for activity-centered services must support communication and collaboration between services across time and space.
以活动为中心的服务的基础结构必须支持服务之间跨越时间和空间的通信和协作。
A number of object models were proposed for implementing activity-centered services, the most interesting being the active object model.
人们建议了许多对象模型来实现以活动为中心的服务，其中最有趣的是活动对象模型。
All this activity was centered around southern Europe where there is also evidence of ceramics that were created much later.
所有这些活动都集中在欧洲南部，那里也有证据证明陶器是很久以后才创造出来的。
Locate Groups Or Clubs Which Are Centered Around This activity.
以这个活动为中心确定一些小组或者俱乐部。
Most of Russia's economic activity is centered in Moscow, where a sizable middle class has emerged.
俄罗斯大部分的经济活动集中在莫斯科，那里已经形成了一个相当可观的中产阶级。
The concept of Activity centered design is widely used in recent years.
以行为为中心的设计在近年来颇为流行。
Then we expound the gross designing course and main contents of PBL Web-based course based on PBL and instructional design centered on learning activity.
然后在以学习活动为中心的教学设计理论和PBL 的基础上，提出PBL网络课程的总体设计过程和主要设计内容。
All the relevant activities are centered on a theme and thus called "a thematic activity".
所有相关活动围绕一个主题展开，因而被称为“一次主题活动”。
European activity will be centered on the German ZEW.
今日欧洲市场将聚焦于德国ZEW经济预期指数。
European activity will be centered on the German ZEW.
今日欧洲市场将聚焦于德国ZEW经济预期指数。
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