扩孔

Adjust the focal length depends on the surface membrane surface tending, quadrochromatic, quadrochromatic type, hole size, magnification, and so on.

焦距调度存决于滚筒暗地草稿药膜背的朝向、草稿典范榜样、平孔巨细、不扩不小倍率等。

But some kind of detects such as gapping, broaching, break, separation were usually found in bored cast-in-place pile, which maybe reduces bearing value of pile and does harm to the superstructure.

但是许多机械成孔的灌注桩常出现缩颈、扩颈、断裂、离析等缺陷，影响桩基承载力及上部结构的安全，严重者甚至使桩失去承载力。

But some kind of defects such as gapping, broaching, break, separation were usually found in bored cast-in-place piles, which maybe reduces bearing value of pile and does harm to the superstructure.

但是许多机械成孔的灌注桩常出现缩颈、扩颈、断裂、离析等缺陷，影响桩基承载力及上部结构的安全，严重者甚至使桩失去承载力。

Its drilling unit consists of laser, optical beam expander, galvanometer deflective mirror and focus system.

制孔单元由激光器、光学扩束、振镜和聚焦系统构成。

Methods All operation were performed in normal radioparent operatingtable,an 8cm incision is located in fibular of the patella ligament, drill in the femoral intercondylar ,the fracture is manipulatively reducted with the knee flexion, enlarging the medulla ,then interlocking intramedullary nail is inserted.

手术均在能透视的普通手术台进行，于髌韧带外侧缘做8 cm的切口，经股骨髁间窝开孔，膝关节屈曲手法复位，依次扩髓，逆行穿入带锁钉。

When a steel tube is bulged by a punch, high energy absorption effect can be achieved.

通过使圆形钢管的内孔扩胀变形，可以实现很高的吸能效果。

The inventive assembly finds particular application in reaming preformed holes which are used to locate anchor bolts.

本发明的这种装置特别适用于铰扩用于安装锚栓的预成形孔。

To get the best drill auger, a set of model drill auger and related test device were designed and manufactured. By choosing appropriate material as boring medium, a series of model test of drill auger boring into cement soil were done to study the impact of pattern of the drill auger and the screw-pitch on the holeforming torque.

为得到最优的螺旋挤扩钻头型式，设计加工了不同型式的模型钻头及相关试验装置，并选择合适的材料作为钻入介质，通过不同型式模型钻头的钻入试验，研究了钻头螺距、螺纹形状等参数对钻头成孔扭矩的影响。

Drill holes in the drilling carried out, extending, hinge, screw attack when processing fixture as used in drilling jig, also known as Jig.

在钻床上进行孔的钻，扩，铰，攻螺纹加工时所用的夹具称为钻床夹具，又称钻模。

The article introduces the working mechanism and characteristics of the column hammer impact expanding pile process to reinforce the subgrade and its design calculation method.

在《建筑地基处理技术规范》(JGJ79一2002)中对柱锤冲扩桩法的解释是：&反复将柱状重锤提到高处使其自由落下冲击成孔，然后分层填料夯实形成扩大桩体，与桩间土组成复合地基的地基处理方法&。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。