barrier line

基本解释

With manual barrier opening, in line with the fire management requirements.
具备手动开闸功能，符合消防管理要求；
The PER walls' water-tightness performance is more reliable, compared to the single-line barrier walls, the drained cavity walls, and the simple rain-screen walls.
等压雨幕墙在雨水防渗方面的表现相比单层墙、排水夹空墙或简单雨幕墙更为可靠。
Other manufacturers building new facilities have located the filling line close to the lyophilizer and have provided a primary barrier extending from the filling line to the lyophilizer.
还有的生产商建造新的车间时，将灌装线和冻干机摆放的很近，并且在灌装机和冻干机之间安装主要的屏障。

We've already seen 220 miles worth of levees and flood walls repaired, and we are working to strengthen the wetlands and barrier islands that are the first line of defense for the Gulf Coast. (Applause.) This isn't just critical to this region's physical protection, it's critical to our environment, it's critical to our economy.
WHITEHOUSE: President Obama Holds Town Hall in New Orleans
But the lanes are protected from motor vehicles by a line of white paint—a largely metaphorical barrier that many drivers ignore and police do not vigorously enforce.
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Media companies may have to raze the once-sacred barrier between content and commerce and start selling things on-line.
FORBES: World Weary Web