The Volga region is one of Russia's primary spring wheat-growing areas.

伏尔加地区是俄罗斯主要的春小麦种植区。

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Conical and chevron spring with rubber-metal layer structure, was one kind of primary spring, which had better three direction dynamic property and widely used in locomotive motor.

金属—橡胶复合的轴箱弹簧主要应用于城市地铁、轻轨车、工程车等机车车辆上，具有良好的垂向、横向和纵向动态性能。

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Conical and chevron spring with rubber-metal layer structure, was one kind of primary spring, which had better three direction dynamic property and widely used in locomotive motor.

金属—橡胶复合的轴箱弹簧主要应用于城市地铁、轻轨车、工程车等机车车辆上，具有良好的垂向、横向和纵向动态性能。

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