This breaks the link (called a "thread") between the original message and your soon-to-be-created response.
因为它打断了原始邮件和回复邮件之间的关联(所谓的“线索”)。
2
After the thread pool is created, you can select the TCP inbound channel link from the trail above, which lets you to go back and set the thread pool for that port (Figure 4).