Depressed trough, manhole edges and other places where the roller can not reach shall be compacted with frog rammer.

在压路机不能达到的路槽和检查井边缘，采用蛙式打夯机夯实。

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The construction of the roller compacted concrete dam needs four dry seasons and four flood seasons to reach the design elevation.

碾压混凝土拦河坝工程须经过四个枯水期四个汛期的施工才能达到设计高程。

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The guide roller ensure the ring rolled comfort, and inspect roller check the rings diameter whether reach the limit dimension.

导向辊保证轧制平稳进行，检测辊（信号辊）测量轧制环件尺寸是否达到要求以停止轧制。

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Investors who stuck with it over the past three years had to ride a roller coaster to reach those heights.

FORBES: Telecom Funds: Balancing on the Wires