其他主要原因包括干旱和寒冷气候条件。

Other causes include arid and frigid conditions.

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在寒冷气候条件下，洋葱可能需要14 - 15小时日照才能形成鳞茎。

In cooler climates, Onions may need fourteen to fifteen hours of daylight to start forming bulbs.

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寒冷气候条件下机车柴油机使用低标号柴油是铁路节能降耗、提高经济效益的有效途径。

It is an efficacious method that inferior brand diesel oil is used on locomotive diesel engine in cold weather to economize energy sources and increase economic benefit.

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