Child Tags is an optional section that may be added to a tag in a library definition.

Child Tags是一个可以向库定义中标签添加的可选部分。

youdao

An optional section at the end describes how to deploy the DayTrader sample application if you want to use it for testing.

在结尾处一个可选的小节描述了如果您希望将其用于测试的话，如何配置DayTrader例子应用程序。

youdao

I've even got an optional regulated supply board for the LME section.

我什至还得到了一个可选的稳压电源板，伦敦金属交易所部分。

youdao

This series adopts a discrete component configuration that separates the display section from the tuner section, and these two sections can be connected with a cable or by using an optional wireless video transmitter unit that employs AMIMON's WHDI technology.

ENGADGET: Sharp's X-Series LCD HDTVs offered with WHDI wireless link