In this case, a "source" is an instance of a delivery process that is to be extended.
在这种情况下，“源”就是将要被扩展的一个交付过程的一个实例。
2
Laszlo has also extended support to the Ajax community and multiple user device delivery.
Laszlo还扩展了对Ajax社区和多个设备交付的支持。
3
Building upon the capability of the RTGS system, the HKMA has extended the Delivery versus Payment facility for debt securities transaction to share transactions.