They were protected from the thin, cold air by the pressurized cabins of two Boeing 707s, and from the risk of collision by the prudent arrangement of the international air corridors.
两架波音707的密封舱将他们隔离在稀薄寒冷的空气之外，国际空中走廊的严格划分使他们免于相撞的危险。
2
The tug between national and supranational regulation has gradually led to an ad hoc arrangement for the international banking system.