The artery in which the stent is placed, however, can become blocked again during a process called restenosis. This re-closure means a repeat surgery.

而置入支架的血管可因一种叫做再狭窄的过程而再次闭塞，这就意味着要二次手术。

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When it re-opens in early 2012 after a seven-month closure for a tip-to-toe renovation, the harbourfront Park Hyatt Sydney will likely resume its rank as the top choice for visiting business travellers.

BBC: Business trip: Sydney

Following a period of closure, the road re-opened at 02:10.

BBC: Two die after van and lorry crash near Loch Fyne

However, on the same day the re-offending figures were released, the prisons watchdog attacked the closure of a unit with a proven record in rehabilitating teenage criminals.

BBC: Violence bucks reoffending trend