Transaction layer - provides the communication tools which allow peer entities in two machines operating in the transaction sublayer to communicate and associate multiple operations as parts of a single transaction 事务处理层- -提供允许运行在事务处理子层的两台计算机中的对等实体进行通信并将多个操作组合在一起作为单个事务的各部分的通信工具。
However , if you are performing multiple operations that require an open connection , you can improve the performance of your application by explicitly calling the open method of the 但是,如果您在执行多项需要打开连接的操作,则可以通过以下方式提高应用程序的性能:显式调用connection的open方法,对数据源执行操作,然后调用connection的close方法。
For example , it s not yet known whether you would expose a single invoice service capable of multiple operations or multiple services , each one supporting a different aspect , such as raising , paying , or altering an invoice 例如,我们还不知道是否要提供一个可以处理多个操作和多个服务的单一发票服务,每个都支持不同的操作,例如开具发票、支付发票或修改发票。
Because all the objects are built on a standard interface , you can chain together multiple objects such as a hash object followed by an encryption object , and you can perform multiple operations on the data without needing any intermediate storage for it ) 。由于所有对象都在标准接口上生成,所以可以将多个对象(如一个哈希对象后跟一个加密对象)链接在一起,并且可以对数据执行多个操作而不需要为数据提供任何中间存储。
For years , the group company has been making constant efforts and adhering to the operation policy of “ led by real estate development , supported by construction and steel structure operations and optimized by multiple operations , to build an enterprise with high quality and efficiency ” 长期以来,集团公司坚持“以房地产开发为龙头,以建筑、钢结构施工为骨干,以多种经营为优化,创建优质高效企业”的经营方针而不断努力。