孔

Results:In the position of saphenous nerve corssing the hole of anterior wall of adductor canal in the thign,the nerve was 2.7±0.4mm in width and 1.2±0.3mm in thickness.

结果 ：在股部的收肌腱板裂孔处，隐神经宽(2 。7± 0 。4)mm ，厚(1 。2± 0 。3)mm(厚/宽：0 。46)；裂孔宽(5 。2± 0 。7)mm ，高(1 4 。1± 2 。4)mm ，孔远大于穿行其内的隐神经。

In different conditions on fluidized state and stability of conical fluidized bed. The conlusions are: the conical angel of the conical fluidized bed is 20°, the fluidized state havesmall difference in conical distributor and distributor plate. The angle of conical bed increase,the fluidized state will have big difference. The angle is 60°and the conical as distributor, themass of fluidized is less, the most of material is the bottom of conical bed. The effect ofdistributor plate is much better than the conical distributor. Sawdust and rice hull can fluidize.The annular gap of conical distributor different, the angle of conical bed is same, the fluidizedquality of 10mm annular gap is better than the other conical distributors. The annular gap ismore wide, the conical bed have more slugging phenomenon and the pressure fluctuate is turnbig.In the experiment the flow of 2％and 4％distributor plates don\'t easy to control, becausethe pressure is very big and the pressure fluctuate of conical bed is too big.

在不同的条件下对锥形床的流化状态和稳定性进行了研究，结果得出：锥形床的锥角为20度时，分布锥和分布板的流化状态相差不明显，随着锥形床锥角的增大，分布锥和分布板的流化现象会出现明显的变化，锥形床锥角越大，分布锥的流化状态变化越明显，流化的的物料越少，大量物料都聚集在锥形床底部，而分布板在加料量少的情况下，能流化起来。10mm、15mm和20mm环隙分布锥在锥形床锥角相同条件下，10mm环隙分布锥的流化质量要好于其它两个分布锥，环隙越大越容易出现腾涌现象的产生，压降波动范围增大。2％、4％和6％开孔率分布板在本实验测定时，2％和4％开孔率分布板的流量不容易调节，同时产生的压降波动范围也很大，比较来说，6％开孔率分布板流化质量好些。

The cylindrical film holes are 45° inclined and perpendicular oriented, there are totally fourteen holes placed on one ribbed wall. Geometrical parameters such as rib angle (45°, 60°, 90° and 120°), rib height (h/e=1.0, 2.0), location of the hole relative to rib on the discharge coefficients and pressure loss characteristics are all studied systematically.

实验中主要研究了肋的角度(θ=45°、60°、90°、120°)、肋的高度(h／e=1.0、2.0)、肋与气膜孔的相对位置、通道横截面的高宽比(H／W=0.5、1.0、2.0)等几何参数对气膜孔出流特性的影响，以及肋的几何结构、气膜孔的出流对通道流阻特性的影响。

Multi angle drill bit, chisel, hole saw, forstner bit, spade bit, auger bit, carbide hole saw, plier set, tool set.

W2G73 全方位多功能钻，石工凿，锁孔钻，碳钢孔锯，木工扁钻，支罗钻，碎粒孔锯，钳子，工具组套。

The assembly of journal and plain bearing liner space is too little, force of organic still oil pressure is small it is the crucial index that affects lubricant result, make lubricate because of lacking engine oil between crankshaft and plain bearing liner and bite dead invalidation, include to be pulled badly, lack lube, layer of alloy of dry attrition generation is fused, grind sliding surface to did not maintain the oily film of certain ply, and all sorts of local overload exhaustion are destroyed, cavitation erosion and V form are destroyed etc, through technology of him director diesel locomotive old experience reachs the analysis of pair of its breakdown reasons, put forward precautionary measures especially. As a result of,the burns caustic mechanism plain bearing liner to burn caustic mechanism of 1 plain bearing liner is the lube film burst between journal and plain bearing liner, cause plain bearing liner and crankshaft generation clash, below high temperature, high pressure and high rotate speed, the wear-resisting alloy layer of plain bearing liner wears away prematurely or fuse, cause plain bearing liner and crankshaft to stick thereby bite, can make the steel back of plain bearing liner and Kong Zhong produces whirligig, inlet port is jammed, carry on the back by steel again with the friction of aperture causes high temperature to make plain bearing liner burned-out further, can cause bolt to break off, happen swing a malign accident that pounds cylinder body of bad internal-combustion engine.

轴颈和轴瓦的装配间隙太小，还有机油压力低是影响润滑效果的关键指标，使得曲轴和轴瓦之间因缺少机油润滑而咬死失效，包括严重拉伤，缺少润滑油，干摩擦产生合金层熔化，磨滑面没有保持一定厚度的油膜，以及各种局部过载疲惫破坏，气蚀和V形破坏等，通过本人主管内燃机车技术多年经验及对其故障原因的分析，特提出预防办法。1轴瓦的烧损机理轴瓦烧损的机理是由于轴颈和轴瓦之间的润滑油膜破裂，导致轴瓦和曲轴产生摩擦，在高温、高压和高转速下，轴瓦的耐磨合金层过早地磨损或熔化，从而引起轴瓦和曲轴粘咬，会使轴瓦的钢背和座孔中产生旋转运动，进油孔被堵塞，再由钢背和座孔的磨擦进一步引起高温使轴瓦烧坏，并会造成螺栓折断，发生甩出捣坏内燃机缸体的恶性事故。

On the basis of analyzing the blasting characteristics of rock at bench top in bench blasting, the paper puts forward a calculation model of the charge for blasting top rock of the hole, and then deduces an formula for calculation of stem length of hole blasting, which is available for reference in blasting design.

在分析炮孔爆破特点的基础上，提出了计算破碎炮孔顶部岩石炸药量的计算公式，据此建立了计算炮孔堵塞长度的数学模型，可供爆破设计施工时参考。

Dynamic pressure averaging pipe was generally applied to blowing rate measurement in rectangular pipe of power plant, the average velocity of flow in the section was represented by the average dynamic pressure at the line through the geometric center of the cross section, and then the blowing rate was determined.

针对这一问题，本文设计了基于&对数契比雪夫法&的送风流量测量装置，将5支动压平均管置于同一截面，按&对数契比雪夫法&选点位置开孔，把这5支动压平均管的静压输出孔、总压输出孔分别连接到一起作为传感器组件的差压输出，实验表明这种方法使测量准确度明显提高。

When the guide hole drilling is completed, unloaded oriented bit, to accommodate tube launchers and connect with reverse bore bit and rotary joint, Then after the rotary joint drill pipe connected to Rafah, to Reamer drilling.

当导向孔钻进完成后，卸下导向钻头、发射器容纳管，接上反向扩孔钻头和旋转接头，然后在旋转接头后接上回拉钻杆，进行回拉扩孔钻进。

Next, in order to ensure the process precision and production efficiency of boring machine tool ,the jig uses 'one surface-two sell' .the way of Clamps is hydraulic pressure clamping, which replaced by Manual clamping.

其次，夹具采用一面两销定位，保证了导管孔及气门阀座孔对定位销孔的位置精度。

The factors to influence fatigue life of chain plate are concluded by experimental methods.

用试验方法确定了挤孔对链板疲劳寿命的影响，从理论上分析了在最佳挤孔量下，链板疲劳寿命提高的因素，用有限元法计算了 16 A链板的最佳挤孔量，并与试验结果进行了比较。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。