The extract request contains the metadata about the selected source database tables.

该提取请求包含关于选择的源数据库表的元数据。

youdao

When you click the source element, a pop-up menu displays a list of target actions that match the selected source.

当您点击目标元素时，会显示一个弹出菜单，给出一个与被选择元素相匹配的目标操作的列表。

youdao

A transform between the selected source and target will be created and you can then customize the transform as desired.

将在所选的源和目标之间创建一个转换，并且稍后可以根据需要对转换进行定制。

youdao

With USB source selected, DJs can browse music and load tracks on the XDJ-AERO using the devices' bigger, touch-sensitive screens.

ENGADGET: Pioneer's new WiFi-enabled XDJ-AERO controller says goodbye wires, hello dancefloor (video)

To find out what each selected participant offers, have a peek at the Nike source link below.

ENGADGET

Source words were then replaced by target words selected from a dictionary, and their order rearranged so as to comply with the rules of the target language.

ECONOMIST: A gift of tongues