The failure cause was found by analyzing high pneumatic down-the-hole bit bursting crack and the other reasons in the early stage.
对高风压潜孔钻头使用时钻头体崩块、掉齿等早期失效情况进行分析,找到其失效原因。
A little later, a young man from a nearby school respectfully said to the man that there was something which could beat even a wall—the mouse that bit a hole through it.
过了一会儿,附近学校的一个年轻人恭恭敬敬地对他说,有东西连墙都打得开——那就是能把墙咬穿的老鼠。
If your hole ends up being a bit too big and the knots themselves don't hold the yarn in place, then tug on the yarn ends and stick some Popsicle sticks under the main knot to secure in place.
如果中间的孔太大,线结本身不能将毛线固定在合适的位置,那么可以用力拉毛线的末端,并将一些冰棒棍粘在毛线结下面加以固定。
If the implementation is just a bit insecure, a hole is opened on the boundary: the balloon deflates or, worst case, explodes.
如果实现不是很安全,那么这个边界上就会出现漏洞:导致气球消气了,或者最糟糕的情况是气球炸了。
Every now and then, the black hole swallows a bit of gas, a wayward planet, or even an entire star.
这个黑洞时不时吞下一点气体、一颗任性的行星,乃至一颗完整的恒星。
Asking "why" this happens to some and not for others is a bit like going down a rabbit hole of repressed psychology.
问为什么这种情况只发生在某些人身上而没有发生在其他人身上有点像进入了压抑心理学的兔子洞里。
Just when we thought we were in to the easy bit of the drive we hit the narrow, steep, pot hole filled roads of Albania.
就在我们以为我们到旅程简单一点,我们来到了狭窄,陡峭,到处坑洞的阿尔巴尼亚道路。
The frame is mainly used to after installation, to support a top attractions, also can install a bit, reamer hole processing, etc.
尾架主要用来安装后顶尖,以支撑较长工件,也可安装钻头、铰刀等进行孔加工。
The bit is usually a drag bit fitted with either PDC or natural diamond cutting structures, but the core bit is unusual in that it has a hole in its center.
钻头通常属于刮刀型,装备有PDC或者天然金刚石切削齿,但取芯钻头的特别之处在于钻头中心有一孔。
Taper the plug off a bit with the chisel so that it will fit into the hole.
用凿子把塞子的一头削掉一点,使它能塞进洞里。
Through this experimentation, it indicates that the sampling bit added pumping hole ADAPTS to drilling in most fragmentized strata.
试验表明,增加了抽吸孔后的取样钻头适合在极其破碎的地层中钻进。
Is the stack height, maximum hit per drill bit, and feeds and speeds as a function of laminate type, board thickness, layer count and hole size controlled properly?
堆叠高度,每钻咀的最大钻次,进刀速度是否对板材类型,板厚,曾数,与孔尺寸进行管控?
Taper the plug off a bit with a chisel so that it will sit into the hole.
用凿子把这塞子一头削尖点,使它能塞进孔里。
The paper introduced the successful application of high bench caving method of using deep hole roller rock bit into the practice of solving the complex goaf area, a stuff problem of this kind.
采用深孔牙轮钻机、利用高台阶崩落法成功地处理了复合采空区,解决了复合采空区处理难的问题,使技术人员在熟练浅采、深采空区处理的情况下,又探索出复合采空区的处理方法。
Like many businesses in Jackson Hole, the designer had carried the cowboy theme a bit too far for her liking.
在她看来,像许多杰克逊·霍尔的企业一样,设计师对牛仔主题的表现有点过度,不合她的意。
The downhole stabilizer location adjuster, fixed between the bit and the drill collar, is a special tool for continual deviation control of a slant hole.
井下稳定器安放位置调节器是斜井旋转钻井时实施井斜连续控制的专用工具,安装在钻头与钻铤之间。
It still is a difficult subject for most drilling engineers to predict and control well path by applying the mechanical analysis of bottom hole assembly and the rock-bit interaction model.
利用下部钻具力学分析和钻头与地层相互作用模型来预测和控制井眼轨道对于大多数钻井作业来说仍是一个难题。
The utility model relates to a medical orthopaedics left-hand drill bit for drilling a left-hand thread hole. A metal drill rod is carved with a left-hand groove.
本实用新型涉及一种可以钻左旋丝孔的骨科医用左旋钻头,它是在一个金 属钻杆上镂刻有左旋凹槽。
The formation of the bottom hole rock-disintegrating track of the mono-cone bit with wedge teeth was studied, and simulation software for the track pattern was developed.
在此基础上以楔形齿为对象研究了偏心单牙轮钻头井底破岩轨迹的形成,并编制了井底轨迹图仿真软件以模拟牙齿的凿岩轨迹。
You can sniff the steam coming out of the hole if you wish. Then, take a second spoon, dip it into the ginger-and-vinegar sauce served with the dumplings and carefully pour a bit into the hole.
之后,如果你想,你可以嗅到蒸汽,然后,用第二个汤匙,舀上生姜和醋汁送到饺子洞里。
The bottom hole pattern of a well is the aggregation of the pits on the bottom rock cut by the bit teeth in the course of drilling.
井底模式就是钻头在钻凿岩石的过程中,钻头牙齿在井底岩石上打出凹坑的集合。
The trajectory of bore hole is proved to be formed by the resultant displacement of the bit instead of the resultant force.
由此得出,决定井眼轨迹的是钻头合位移方向,而不必是合力方向。
When traditionally processing the parts with small deeper hole by the method of drill, there is certain difficulty in excluding bits and the bit is broken easily.
传统上采用钻孔方法加工小孔径深孔时,存在排屑困难、钻头易折断等缺陷。
When the inclination angle of a side nozzle is 0, 30,45 and 60 degrees, the eddying flow of the bottom hole vortex device will cause rotation at the bottom hole, affecting on the jet from bit nozzles.
侧喷嘴倾斜角度在0度、30度、45度和60度情况下,由于井底涡旋器的旋流作用,导致井底产生旋转,对钻头喷嘴射流产生了影响,以致在45度时出现压力损失最小的情况;
The reaming drill bit in slim hole is a key tools of re-drilling in existing well.
小井眼扩孔钻头是老井重钻的关键设备。
When used, the drill bit is put into a drill hole, and then rotated left to drill out the drill hole with left-hand threads.
使用时,将钻头放入钻孔的位置,左旋转即可钻出左旋丝纹的钻孔。
When used, the drill bit is put into a drill hole, and then rotated left to drill out the drill hole with left-hand threads.
使用时,将钻头放入钻孔的位置,左旋转即可钻出左旋丝纹的钻孔。
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