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- Geometrical optics approach can only calculate the high frequency approach solution of drilling bit vibration source wave equation in non caustic area but it become invalid in caustic area. 由于几何光学法求解钻头震源波动方程的高频近似解有局限性,即在焦散区失效,故只能计算非焦散区的高频近似解。
- To drill holes in a mirror, you need a special mirror drill bit. 在镜子上钻孔,你需要一个特殊的镜子钻头。
- Support the drill bit & MOS team on other production duties. 协助钻头及矿山安卡生产线的其他工作任务.
- The dynamic pressure of drill bit,etc. ,has been measured and analysed in test drill rig by using pressure transducer dynamic strain analyzer,charge amplifier and CRAS random signal and vibration analysis system. 本文在试验台架上安装压力传感器、利用动态应变仪、电荷放大器以及 CRAS随机信号和振动分析系统进行了钻头动态压力测试和分析。
- Sewing machine parts, Air stapler and nailer parts, Drill bit body, lock parts. 工业缝纫配件、射钉枪配件、工矿钻头类、锁配件。
- Another probe, this one with a spinning drill bit at the tip, appears. 另外一个探针,顶端有一个纺纱一样的钻头。
- A drill bit used for obtaining core samples in concrete or rock formations. 钻头被用来在水泥或岩层获取岩芯样品。
- Instead stop your drill bit short of the headliner inside the vehicle . 而不是停止您的钻头短期的头条新闻车内。
- The rotary gear reducer is driven by a DC motor through a gearbox to pro-vide bi-directional drill bit rotation. 转动齿轮减速器是由一个直流电机驱动的,通过一个齿轮箱为钻头提供双向转动能力。
- Crank shaft,the severe material test will make it hardness and durance. a illtle bit vibration when circulation after balance spindles correction to prolong mechanical life. 曲轴经严格材料测试,坚固且耐用,平衡鎚经精密校正,运转时,震动小。
- Use a 5/8-inch drill bit, then a coarse cylindrical rasp to enlarge the drainage hole. 转一个5/8英寸的洞,然后用锉刀把这个“排水口”搞大点。
- This sharpener is applicable to sharpening of such cutting tools as mill cutter,reamer,and drill bit,etc. 本磨刀器适用于立铣刀、铰刀、钻头等多中刀具的磨削,结构简单、操作方便、经久耐用。
- In this paper, by theory analysis on drill bit, drill parameter, ream hole and time factor etc. 但在非开挖中如何运用简单孔口定向方法要求设计及施钻人员必须对钻孔的弯曲特点有较深入的了解,并要求要一定的施工经验。
- Special kneading machine,firm structure,durable;double motors,strong power;bit vibration,stable;also can knead litter powder; easy operation ,easy clean;good quality,conform to the safe test. 专业用打面机,结构坚固,耐用;双马达,马力大;震动小,稳定性大;搅拌效果佳,且可以搅拌小容量面粉;操作安全,容易清洗;高品质,符合安全测试。
- Sewing machine parts, air stapler and nailer parts, drill bit body, stainless steel hardware with satin supface. 工业缝纫机零件、射钉枪配件,锚件钻头类,不锈钢抛丸五金件。
- After the analysis, the down-hole flow field inconsequence for the original drill bit is certain. 结合流体力学、湍流理论相关知识,完成了原型钻头井底速度场和压力场的分析,找到了原型钻头井底流场分布不合理的原因。
- A two-foot-long drill bit tipped the end of a brontosaurus-like creature's long neck. 一枚两英尺长的钻头卸掉状似雷龙的家伙长颈的一端。
- Change the flute structure to study the contrast of the floe field, provide the basis for the drill bit flute design. 改变排屑槽的分布方式,研究井底流场变化规律,为钻头排屑槽的设计提供依据。
- The resistivity measured at the drill bit by a measurements-while-drilling (MWD) tool. 利用随钻测井仪(MWD)在钻头附近地层测量的电阻率。
- Stones drilling bit:Use for drilling stones,concrete,firebrick etc. 石材钻头:适用于石材、混凝土、耐火材料的钻孔。各种型号及规格。
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