Hand down

hand-held sinker

向下打眼的手持凿岩机

A hand - held machine for drilling rock and breaking up pavement, operated by compressed air.

手挂式风钻，轻型凿岩机通过压缩空气运转的钻岩石、挖隧道的手持机器

the infernal racket of the jackhammers.

手提凿岩机的令人厌恶的轰隆声

A system or device for doing work, as an automobile or a jackhammer, together with its power source and auxiliary equipment.

机械系统用来工作的系统或装置，如汽车或手持式凿岩机，包括其动力源和辅助设备

The adaptive function of genetic algorithm on task planning of the rock-drilling manipulator

凿岩机械手任务规划中遗传算法的适应度函数

Effects of Hand Transmitted Vibrations on Sperm Quality in Coal Mine Drillers

手传振动对凿岩工人精液质量的影响

A machine that bores through hard surfaces, used especially for tunneling through rock.

凿岩机一种钻孔于坚硬表面的机器，尤用作凿穿岩石的隧道

The factory was set up for drill production in TAI-CHUNG.

于台中县青山设工厂，打造凿岩机用钻头。

air feed stoper

压风推进的伸缩式凿岩机

Simulation Research in Dynamic Process of Valveless Hydraulic Drill;

无阀液压凿岩机动态过程的仿真研究

Development and Application of Efficient Energy-saving Full Hydraulic Rock Drill

高效节能全液压凿岩机的开发和应用

Kinematical analysis and modeling of drilling manipulator in rock drilling machine

凿岩钻车机械臂的运动学分析与建模

Otherwise they may be supported on a jackleg. The pattern of holes determines the quantity of the material removed and the safety of the remaining rock.

凿岩机也可用气腿支撑。炮眼的布置决定着崩矿数量和留矿堆的安全性。

The enterprise beijing langjin photoelectric industry co., ltd. offers Labelling machine among other things .

公司提供大量的穿孔机、凿岩机和贴标签机。

automatic rotation stopper

自动旋转伸缩式凿岩机

bar rigged drifter

架式风钻，架式凿岩机

auto feed drifter

自动推进架式凿岩机

He wiped the eye of the armed burglar.

他一拳把那个手持武器的窃贼的眼睛打青了。