The general feature of the large opening with nozzle structure on ellipsoidal head, in which the property of the head is influenced by two interferential boundaries, are investigated in this paper.
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5. 具有外形尺寸小、重量轻、通孔和转速适中、性能可靠等特点，各项指标均能满足一般数控车床的需要。
They are with feature compact construction, light weight, moderate center hole and speed, reliable performance, and meet requirements of nc turning lathes.
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6. 对复杂工件，一般先呈工平面再加工孔。
For complex workpiece, the general working plane is first to be machined.
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7. 除一般要求外，应该注意是否因氧化而引起的材料的损失而造成的尺寸不良，挂孔披锋等现象。
Unless general requirements, inspector shall also note out-of-size or burrs problem caused by material lost after anodizing.
It is difficult to pull out the bolt with ordinary socket wrench that can not provide axial tension because of the bolt drilling hole deformation and the collapse of holes.
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9. 一般用于小直径管道系统的一种阀。它包括一个用于控制流体流动的孔板或限流装置。
A type of valve, typically found on small-diameter pipework, that incorporates an orifice or flow-restriction device to control fluid flow.
The checkout error of distortion and flexure caused by tapers of crank bore and piston pin eye is analysed. The solution for this problem is put forward.
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11. 吹十孔口琴一般都是用第一种，吹和弦或者使用舌堵法时就要用第二种口形了。
Use the first mouth shape to play single notes and the second one to play chord with tongue block.
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12. 通过求解压缩机热力学模型和进行动力计算，分析了背压孔的一般运动规律。
General motion low of back-pressure ports position is developed by solving thermodynamic model of compressor and carrying out dynamical computation.
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13. 一般情况下，压汞法最常用的是园柱孔模型。
In general, the cylindrical model is often used in such porosimetry.
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14. 一般乐手只在8,9,10孔上做吹气压音，并且吹气压音要比吸气压音更难掌握。
In general, players only bend blow notes 8, 9 and 10. Also the blow bends are more difficult than the draw bends.
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15. 由于销孔尺寸、形状和位置精度及粗糙度的要求都很高，一般都需要设计并制造高精度的镗头。
Because of the high requiring of the size, shape, position precision and roughness of pinhole, a high precision boring cutter is required to design and manufacture.
For these common problems in mechanical machining, special fixtures for two special parts, a forked part and a steering joint, were designed and accordingly two proper processes were introduced.
This paper gives the elastic differential equation of collapse of perforated casing, and a general formula for reduction factor of elastic collapsing by perturbation method.
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18. 在一般绘图仪上绘制出了斜兜孔保持架模具总图和主要零件图。
On general plotter, the assembly drawing and main parts drawings of die for bearing cage with slanting hole are made.
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19. 最后，给出带盲孔的轴对称锻件的闭式模锻工艺设计的一般性指针。
At the end, some general instructions for the process design of flash die forging of axisymmetric gear blanks with blind hole were suggested.
In a common LTCC filter, vias, an electric connecting, would act as a great inductance and worsen the performance of the model, when the operation frequency was high enough.
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21. 一般的板要钻10000-12000个孔（最多可达到3万），大约需钻一个小时。
Typical panels have 10000-12000 holes (some as much as 30K). Takes approx. 1 hour to process.
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22. 一般来说，保证平面的加工精度要比保证孔系的加工精度容易。
In general, it is easier to guarantee the machining accuracy of the plane.
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23. 表孔一般是高拱坝泄洪的主要通道，具有孔口数量多、结构尺寸大、受力状态复杂的特点。
Surface outlet is the main discharge channel of high arch dam. Usually many surface outlets of large size are constructed on a high arch dam; their stress conditions are quite complicated.
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24. 孔隙类型以粒间孔为主，喉道类型以点状、片状和弯片状喉道为主，连通性一般。
Pore types are mainly intergranular pore, throat types are mainly point, plates and curved sheet throat, general pore connectivity.
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25. 孔隙类型以粒间孔为主，喉道类型以点状、片状和弯片状喉道为主，连通性一般。
Pore types are mainly intergranular pore, throat types are mainly point, plates and curved sheet throat, general pore connectivity.
