本文介绍了基于PLC的教学挖土机的控制研究，文中根据教学挖土机的控制系统的控制要求，利用PLC的强大功能特性，实现了利用PLC控制系统对教学挖土机进行控制。

In accordance with the requirements of the teaching excavator control system, the use of the power features of the PLC to achieve the use of PLC's control system for the teaching excavator control.

建造工程只可采用手提设备，不得使用挖土机。

Only hand-held equipment shall be used for construction and excavator shall not be used.

挖掘者，挖土机挖掘的人或装置，尤指反向铲挖土机

One that excavates, especially a backhoe. Mechanical mining shovel

我们要借用那边的挖土机。

And we're gonna use that backhoe to get it.

装载机和挖土机能够不需爆破就进行普通的挖掘。

Loaders and shovels easily dig common excavation without blasting.

如果他们给我两架多挖土机。

LF they were to give me two more excavators.

非有用掘机，自力推进式（不包括机械挖土机和挖掘机）

Digging machine, non-agricultural, self-propelled ( excl. mechanical shovels and excavators)

符合安全条例的劳动组织。挖土机。手操作信号。

Safety in the Organization of Work; Earth-moving Machinery, Hand Signals.

旋挖钻机施工钻孔灌注桩的工艺探讨轮式拖头挖土机

Turns on Lathe Digs Drilling Machine Construction Drill Hole Filling Pile Craft to Discuss