Conversation was about Ukraine emplaced Russia's complains about US meddling.

话有关乌克兰表明俄罗斯抱怨美国的干预。

In this case the acronym of choice is REPEL (Rapidly Emplaced Protection for Earthen Levees).

这种装置的全称是" 泥土坝便置保护装置" ，其英文首字母的缩略语REPEL也正好有" 防御" 的意思。

Clearing the unprecedented amount of explosive hazards emplaced by ISIS is a monumental task, but one critical to the recovery of liberated areas.

排除IS埋下的大量爆炸物是里程碑式的任务，对于已解放地区的重建工作意义重大。

The Rapidly Emplaced Hydraulic Arch Barrier, made of the same material as the other two devices, can be put in place around a plugged breach to keep it sealed and dry once the PLUG has been removed.

该装置的全称叫做" 便置式拱形折流坝" 。它种装置采用相同材料制作，可以围住一个被暂时封堵住的堤坝裂口，使之河水隔开。此时就可以将PLUG这个塞子撤掉，晾干堤坝裂口处的泥土。