That both the structure and material of gravity dams and construction means of earth dams are used in roller compacted concrete dams makes them increasingly used in water engineering.

碾压混凝土坝将混凝土坝结构和材料与土石坝施工方法两者的优越性结合起来，在水利工程中得到愈来愈多的运用。

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The correct usage of vibrating roller not only influences the engineering quality, but also influences the usage life and failure rate of the machinery.

振动压路机的正确使用不仅影响到工程质量，而且与机械的故障率和使用寿命息息相关。

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Therefore, in practical engineering applications, we can use double-pitch precision roller chain instead of single-pitch roller chain.

因此，在实际工程应用中，可以用双节距滚子链与相应的单节距链轮配套使用。

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