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。
Depressed trough, manhole edges and other places where the roller can not reach shall be compacted with frog rammer.
本文以我国首创的蛙式打夯机为例，对自行式摆动冲击机构的非线性动力学进行了研究。
In this paper, the nonlinear dynamics of Selfpropelled machines with rocked impact, taking Frog rammer which was first devised in our country as an example, is studied.
蛙式打夯机、轮胎压路机、静作用光轮压路机、振动压路机和手扶振动压路机等是国内压实机械的主要产品。
At present, compaction machinery products include:frog tap machine, type roll road, static effect roll road, vibratory roller and walk-behind vibratory roller, etc.
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