Within activity: object, activity: target, and atom: author elements are one or more activity: object-type elements that contain an atom URI defining the parent object.

在activity： object、activity： target和atom： author元素中有一个或多个activity： object - type元素，它们包含一个定义前辈对象的atom URI。

youdao

Especially by the TS-1 modified with trimethylchlorosilane, much higher catalytic activity was achieved than by parent TS-1 zeolite in the phase-boundary catalysis.

尤其是三甲基氯硅烷改性后的TS 1沸石，在相界面催化反应中，具有比改性前高得多的活性。

youdao

For example: We went to the museum as an activity, and we need parent helpers.

比如说：我们去校外教学（象博物馆）都得要家长义工来帮我们。

youdao

In almost every case, she says, the parent interrupted an activity with the child to use a device.

WSJ: The Perils of Texting While Parenting

If you have an aging parent who may be vulnerble to criminal activity in this open enrollment period, you can help by being sure your loved one is aware of these tricks.

FORBES: Scammers Delight: Medicare Open Enrollment