孔

Classification and forming principle of different kinds of odd-shaped pinholes are introduced.

介绍了各类异形销孔的分类及成形原理，指出非圆曲面形销孔是高速强载活塞销孔结构的发展方向。

Shakuhachi usually refers to five holes (four holes before and after a hole).

尺八一般为5个指孔（前4孔，后1孔）。

Firstly,BEM can be used to accurately calculate the expanding stress at the tip of reamers,with regarding the soil medium as the elastomer.

采用轴对称数值方法，将三维模型转化为二维模型，再采用弹性体边界元边界方法，精确计算扩孔器端面的扩张应力，在此基础上求得扩孔器工作过程中所受的阻力和阻力矩，并通过遗传算法，以阻力和阻力矩最小为优化目标函数，对扩孔器的形状、尺寸进行优化。

The connection between the bottom support board and the pillar should reserve the foot bolt hole, the hole sizeshould be bigger than or be equal to three times of the diameter of the feet bolt, the depth slightly is bigger than the foot bolt length. Pouring into the epoxy resin mortar into the hole, its mixture ratio is the epoxy resin (6,101), DBP17, ethylenediamine 8, and granulated substance

下支座板与墩台的连接则应预留地脚螺栓孔，孔的尺寸应大于或等于三倍地脚螺栓的直径，深度稍大于地脚螺栓的长度，孔中灌注环氧树脂砂浆，其配合比为环氧树脂（6101），二丁脂17，乙二胺8，砂250。

The pressure drop of airflow consisting of pressure drop of the perforated plate and liquid-layer is mainly influenced by the plate dimension and bare tower velocity, with the increasing of bare tower velocity, pressure drop of the perforated plate increases. The experimental data are used to develop a correlation as follows:ΔpD＝1.04×10－82g This correlation should be used whenβ＜5％,0.299m/s＜u＜

空气流动的阻力主要由孔板阻力和液层阻力组成，孔板阻力主要受多孔板的几何尺寸及空塔速度的影响，空塔速度越大，孔板阻力越大，对实验数据进行回归分析得出的实验关联式为：ΔpD＝1.04×10－82g 公式适用范围：β＜5％，0.299m/s＜u＜

Results: Difference between the left and right obits was observed in orbital width, medial distance of superior orbital foramen a and inferior foramen a and c in males. Difference between bilateral orbits was also observed in orbital width and anterior distance of superior orbital fissure in females.

结果 ：男性左右眶宽、眶下孔a、眶上孔a和眶下孔c存在明显差异，女性左右眶宽和眶上裂前距存在统计学差异(P 。0 5 )，并得出眼眶解剖标志的的参考值范围和形态学参数；男、女眼眶各项指标中，眶深、眶宽和两眶宽等测量结果显示出性别差异(P 。0 5 )。

The wire winding wheel has one left disc with two sections of circular wall to form the power cable inlet and embedding opening and positioning hole in the peripheral of the shaft pipe; one right disc with central shaft pipe, positioning expansion pipe capable of being inserted into the positioning hole and circular wall in the same radius as that in the left disc; and one power cable winding shaft inserted into the circular walls to form one integral and with power cable inlet.

本发明在左内凹盘的反面圆台上相对位置突出2段弧形围壁，成为电源线导入口和对侧的嵌入豁口，轴管外围分设定位孔；右内凹盘反面圆台中央也突出轴管，其外围对应定位孔的位置上设置可插入孔内的定位胀管，环设的环围壁与左内凹盘的反面圆台上弧形围壁对应等径；嵌入围壁插入嵌入豁口而成为一体的设有电源线导入口的绕线轴。

The tuning hand wheel is connected to spindle of drive bevel gear. The tuner joint is inside case. The worm wheel is fixed on stepped shaft fixed by nut. The worm engage to the worm wheel is fixed inside case. The upper end of worm is connected to the driven bevel gear. The spindle of drive bevel gear across the hole on the upper cover is connected to the hand wheel.

其特征在于：壳体上有一槽体，调音手轮与主动锥齿轮的轴相连接，调音器接头安装在壳体相应调孔内，蜗轮固定在调音器接头后端的阶梯轴上，用螺母固定，与蜗轮相啮合的蜗杆固定在壳体相应的孔内，用空心螺栓将其固定，蜗杆上端与从动锥齿轮连接，从动锥齿轮与壳体之间有垫片，主动锥齿轮的轴穿过壳体上盖的孔内，并且与手轮连接，用固定螺栓固定上盖。

Said shaft with enclosed two ends passes from marine extraction platform through submarine water-bearing stratum into submarine oil bed and has water pumping and injecting openings corresponding to the water-bearing stratum and oil bed respectively. A sand control filter is mounted to water-pumping opening. A packer is provided in the shaft between water and oil beds.

井筒从海上采油平台穿过海底水层后伸入海底油层中，其井口和井底均为封闭，对应于水层和油层处的筒壁上分别开有抽水孔和注水孔，抽水孔内侧的井筒中装有防砂过滤器，水层与油层之间的井筒中装有封隔器。

Professional production, The tool, cutting tool, CNC blade, hole hole groove knife knife, the knife, cut the slot, the circle is collected, hole threads, thread cutter knife blade, cutting and milling knife, acrylic, wheel hub, machine clip blade knife, piston ZhengLiuZi, universal tool, While producing weld dao/machine nipped dao/including difficult and special tools/non-standard tools, and undertake various non-standard customized extension milling styles.

专业生产；外圆车刀，切断车刀，数控刀片，内孔刀，内孔槽刀，外切槽刀，外圆正尖刀，内孔螺纹刀，螺纹刀片，铣刀，铣刀片，亚克力铣刀，轮毂刀，机夹轮毂刀片，雕刻刀，活塞刀，整流子车刀；同时生产焊接刀/机夹刀/包括高难度及特种车刀/非标刀具，并承接非标定制各种款式加长铣刀。

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。