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汉语拼音：kuò kǒng

1.将钻孔底部或某些类型的基础墩的底部加以扩大，以便增加其承受荷载的区域。

2.用来增加管子、杯状物或壳体等带孔工件的内径的方法。

扩孔 [kuò kǒng]

• Do not attempt to enlarge hole with pin or any other sharp object, as this will cause tearing.

  不要试图用其它锋利的东西来扩孔，这将会引起撕裂。

• Crater radius is one of the important design parameters for the penetration in concrete target by shaped charge jet.

  扩孔孔径大小是聚能装药侵彻混凝土目标的重要设计参数之一。

• To reduce the technological transformation project costs, the legislature decided to roll mill site for reaming rack processing.

  为了降低技改工程费用，决定在立辊轧机现场对机架进行扩孔加工。

• The effects of water jet parameters and drill motion parameters on the soil reaming were investigated by an indoor test.

  通过实验，研究了射流参数和钻杆运动参数对扩孔效果的影响。

• In this paper, the broaching technology for fixed and flexible frame used in large scale circular forging products is introduced.

  叙述了大型圆环形锻件自由锻固定马架和活动马架扩孔成形工艺。

• This paper gives a description of the principle, equipment, process and on- the- spot tests of hole enlargement by high- pressure water jet.

  介绍了高压水射流扩孔技术的工作原理、设备、工艺以及现场试验情况。

• Remaining at the experience control stage, mandrel reaming process in retaining rings lacks the guidance in the formulation of parameters.

  护环的芯棒扩孔工艺一直停留在经验控制阶段，对其中工艺参数的制定缺乏指导。

• Double-checking of the guide wire position with multiple radiographic views is required before drilling or screw insertion.

  在扩孔或植入螺钉前需要对导针位置进行多次透视。

• Care must be taken when drilling so as not to drill too far, thus penetrating the far cortex.

  扩孔时应十分小心，以避免扩孔过头而穿透对侧皮质。