Safety is one of the prime reasons for creating multiple volumes.

安全性是创建多个卷的另一个主要原因。

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One of the prime reasons the leading to concrete failures is reinforcement corrosion, and the chloride ion is the main reason leading reinforcement corrosion in concrete.

混凝土中的钢筋锈蚀是导致混凝土失效的主要原因之一，而氯离子又是引发混凝土中钢筋锈蚀的首要原因。

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And on the other, the exchange rate has been one of the prime reasons why British inflation has stayed so low since the committee was given control of interest rates in 1997.

ECONOMIST: The economy: What goes up | The

One of the reasons cited by the prime minister for halting the talks was that he felt other bills were being delayed and potentially endangered by efforts to pass Leveson-related legislation.

BBC: David Cameron halts press regulation talks

Mr Clegg's absence from the Commons on Monday was one of the main talking points after the prime minister fielded questions from MPs about his reasons for using the UK's veto to block EU-wide treaty changes designed to facilitate closer union between eurozone members.

BBC: PM: Coalition will emerge 'very strongly' from EU row