1、

Theory of stress wave for percussive drilling

冲击式钻眼法的应力波理论

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2、

Using the same type of percussive quality and variable collision height can get different impact energy, which has reached the purpose of loading the test beam.

采用不变的撞击质量和可变的碰撞高度获得不同的撞击能量,已达到对试验梁加载的目的。

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3、

Entertainment Weekly called it a "percussive juggernaut."

这周狂欢派对主题是“震撼力量”

provided by jukuu

4、

Percussive maintenance happens when your piece of electronic device--television, computer, etc--won't work, you give it a sharp unscientific whack4 to revive it.

电视或电脑等电子设备出故障的时候,你有时会通过敲打的方式让其恢复运转。

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5、

Design and research of constant percussive force atomic force microscope in tapping mode

恒撞击力轻敲模式AFM的设计及研究

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6、

Study on incident wave shape and penetrative efficiency of a percussive penetrative system

冲击凿入系统入射波形与凿入效率的研究

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7、

Heat treatment experiment research of pneumatic percussive drill bit for geophysical explore

物探气动冲击钻头热处理工艺试验研究

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8、

This paper introduces the automatic drilling principle, the hardware composition and software program in the windlass percussive drilling by the microcomputer control system.

介绍了卷扬式冲击钻进过程中,微机控制实现自动钻进的基本原理、硬件的组成和软件的设计。

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9、

( medicine) a small hammer with a rubber head used in percussive examinations of the chest and in testing reflexes.

(医学)在敲击测验和反射试验中使用的有木头的小槌子。

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10、

The ideal wave form of rock drilling, energy transmission efficiency from drill to rock, and the theory of matching bits with rock proposed by Fairhurst, etc. are discussed in detail, which has laid a foundation for future study of theory for percussive drilling.

其中重点的对岩石钻进的理想波形、钻机能量输送到岩石的效率,以及Fairhurst提出的钻头与岩石匹配理论等问题进行了比较详细的介绍和讨论,作为继续研究冲击式钻眼法理论的基础。

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11、

Realization of automatic percussive drilling by microcomputer control system

微机控制自动冲击钻进的实现

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12、

Developments and Future Trends of Percussive Drilling Technology in the Construction of Foundation Works

冲击钻进技术在基础工程施工中的进展和展望

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13、

Research on Rock-Crushing Mechanics Model in Rotary and Percussive Drilling

旋冲钻井破岩力学模型的研究

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14、

Experimental study on rock drillability for percussive drilling

冲击钻凿岩石可钻性试验研究

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15、

Discussion on the vibration equation of vibratory percussive drilling

机械振动钻进方程及其意义的探讨

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16、

This paper describes fundamental concepts of stress wave theory for percussive drilling and principal problems to be investigated.

本文阐述了冲击式钻眼法应力波理论的基本概念,以及需要探讨的几个主要问题。

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17、

A study on joint energy transfer efficiency and ideal incident wave shape of percussive drilling with extension rods

接杆凿岩中接头能量传递特性与理想入射波形的研究

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18、

For the complicated geographical conditions in karst area, percussive drilling method is the most effective drilling method to embedded rock piles.

对于岩溶地区复杂的地质条件,冲击钻进方法是嵌岩桩最有效的成孔方法,冲击成孔工艺随地层变化较大,冲孔桩成孔的成败决定于成孔工艺的合理性。

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19、

Based on certain mechanical quality of the rock, the analysis on the Polycrystalline Diamond Compacts ( PDC) bit and the rotary percussive drilling is carried out.

在管棚支护所钻岩石的力学性质基础上,对管棚支护钻孔所采用PDC钻头和回转冲击的钻进方式进行了比较分析。

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20、

There are specific Powered Mechanical Equipment ( PME) with sound power lower than those specified in Technical Memorandum on Noise from Construction other than Percussive Piling ( TM1).

特定的机动设备,其声功率较《管制建筑工程噪音(撞击式打桩除外)技术备忘录》指明的其他设备为低。

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