Spindle feeds and speeds are controlled by selector levers which engage the proper gears in the drill head.
主轴的进能量和转速是通过选速杆使主轴箱中的适当齿轮相啮合而控制的。
This paper introduces the 'structure characteristics and rock fragment characteristics of single step drill head with point pick.
介绍了单阶梯尖环齿钻头的结构特点及碎岩特点。
The drill head for manually drilling has slow rotary speed and does not have temperature increase so that the occurrence of condition such as body tissues burn is avoided.
手动钻孔的钻头转速慢，无温升，可以避免烧糊人体组织的情况发生。
A recent earthquake drill in Shinjuku railway station, where up to 200, 000 commuters might head after an earthquake in the hope of getting home, sounded a warning.
新宿车站的最近一次地震演习已经拉响了警报——多达20万名乘车上下班的人希望在地震后能够回家。
I mention this idea so much you're probably sick of it, but I'll continue to drill it into your head for as long as I can: great photography makes for great design.
我提及这种创意，你或许会嗤之以鼻，但我仍会尽我所能继续给你讲解掌握这种创意设计的技巧：伟大的图片成就伟大的设计。
The head should not bounce up and down during this drill.
在做这个训练的时候，头部不允许上下移动。
Self drywall screws, Pan head Phillips, Drill point, zinc.
自攻干墙螺丝，平头十字槽，钻头，镀锌。
Self drywall screws, Phillips bugle head, Fine Thread, Drill point, black phosphated.
自攻干墙螺丝，十字喇叭头，细纹，钻头，磷化黑色。
It can increase the hole inclination Angle range and drill elevation Angle holes, while setting the top drive power head and hole top plate toward the opposite direction.
动力头及孔口板调转方向，可直接钻凿仰孔，大大增加钻孔倾角范围。
The part of a tool, such as a drill, that connects the functioning head to the handle.
钻头，锤：工具上连接功能头与手柄的一部分，例如钻子。
A recent earthquake drill in Shinjuku railway station, where up to 200,000 commuters might head after an earthquake in the hope of getting home, sounded a warning.
新宿车站的最近一次地震演习已经拉响了警报——多达20万名乘车上下班的人希望在地震后能够回家。
The part of a tool, such as a drill, that connects the functioning head to the handle.
工具上连接功能头与手柄的一部分，例如钻子。
The simple thing to remember about breathing, and in this drill, is to lead with the head.
简单的事情要记住的呼吸，在这次演练中，是领导的头。
The use of sequential reaming head for raising is a new technology, which can make a small-sized drill to be used for boring a large-sized raise.
用迈步式扩孔刀头钻凿天井是一项新技术，该技术能够用小钻机钻凿大天井。
As you master the drill, you main focus is to have you head move within the body wave, move it forward as you breathe, and let it lead your body into the water without pause.
当你掌握了这个练习以后，你的焦点应该集中在你的头的移动是否在身体波浪中，呼吸时向前，让头引领你的身体没有停顿的进入水中。
You're actually kicking on your stomach in this drill with your head looking down towards the bottom of the pool.
你实际上在平卧着踢腿，头向下看着泳池的底部。
The best position depends more on what kind of swimming you do than on the current trend. Here's a drill that will help you experiment and decide for yourself which head/eye position is best for you.
最适合的头部取决于你当前游泳的情况，这里有一个练习可以帮助你验证哪种头部/视线位置更适合你。
The drilling head rotational speed can adjust, the drill hole efficiency is very high, the hole position is accurate, and it is suitable for the construction glass and the furniture glass processing.
钻头转速可调，钻孔效率高，孔位准确，适用于建筑玻璃与家具玻璃的加工。
The results show that the fatigue damage of drill pipe in well head is the most serious.
算例分析表明：钻杆在井口处的单次疲劳损伤最大；
This machine bed can pack to the head of clip-drill and the drills with many bore, making drill a hole more convenient.
本机床可装钻夹头和多孔钻座，使钻孔时更加方便。
The tools introduced include drill, millstones, reamer, grinding head, grinding wheel, grinding shaft.
主要介绍的工具有：钻咀(头)、磨盘、铰刀、磨头、磨轮、磨轴。
Special tool for pumping slurry and releasing plug. The ZSC Single-Plug Cement Head can be connected with Drill pipe.
用于注水泥浆和释放胶塞的专门工具。ZS C型单塞水泥头可与钻杆连接。
Steel Series: steel with high strength large hexagon head bolts, torsion shear bolt connections made, the steel truss joints of high strength bolts, studs, drill the end of wire.
钢结构系列：钢结构用高强度大六角头螺栓，扭剪型螺栓连接副，钢网架球节点用高强度螺栓，焊钉，钻尾丝等。
Steel Series: steel with high strength large hexagon head bolts, torsion shear bolt connections made, the steel truss joints of high strength bolts, studs, drill the end of wire.
钢结构系列：钢结构用高强度大六角头螺栓，扭剪型螺栓连接副，钢网架球节点用高强度螺栓，焊钉，钻尾丝等。
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