打夯

打夯机用来将地面打实。打夯以后，地基就瓷实了。

A ramming machine is used to firm the ground up . The foundation becomes solid after tamping .

实用地，实际地通过实用的方式打夯机用来将地面打实。

In a way that is practical . A ramming machine is used to firm the ground up .

打夯以后，地基就瓷实了。

The foundation becomes solid after tamping .

齐打夯儿地喝彩。

Shout approval in unison .

挖土、运土和打夯工作大部分用机器进行。

Most of the digging , moving and compressing of earth was done by machines .

打夯机夯架应力及疲劳寿命可视化分析

Visual Analysis of Stress and Fatigue Life of the Frame of a Kind of Leapfrogging Punner

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 .

在国防和民用工业领域，电磁发射技术已经应用在飞行器弹射系统、电磁炮、交流电磁泵和打夯机等行业上。

The electromagnetic launch ( EML ) technology has been applied in the fields of electromagnetic aircraft launch system , electromagnetic gun , linear electromagnetic induction pumping units , ramming machine and national defense and industry .