1、

Remining coal seam left in caving zone

浅析开采冒落带内丢煤的复采

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2、

There is a certain angle between caving line and coal seam strike.

垮落线与煤层走向是一定角度。

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3、

Galvanized sheet is readily spot-or seam-welded, but arc gas welding will boil off the zinc coating.

镀锌板上有焊点或焊缝, 但是电弧焊会烧掉锌层.

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4、

Cordlock toggle system in hem at side seam facing towards the senter front.

下摆侧缝有拉绳及拉绳调节扣,朝向前中.

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5、

Unfortunately out immediately to the drilling to find a seam, then the people Zouguang out.

不幸掏出来的应该立刻找一条缝钻进去, 人走光了再出来.

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6、

Cause analysis of welded seam cracking for comb-shaped seal passing through the roof of reheater

再热器穿顶棚梳形密封焊口开裂原因分析

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7、

Design of Key Components of Hydraulic Roof Support Mining Total Height under "Three Soft" and Unstable Coal Seam

三软不稳定煤层一次采全高液压支架关键部件设计

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8、

The Application of Combined Supporting Coal Seam to Roadway Soft Rock Crossing Coal Faultage

软岩开拓巷道过煤层断层时联合支护的应用

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9、

Analyses of Automatic Tracking System on Torch of Boiler Drum Longitude Seam Welding

纵环缝焊机焊头自动跟踪系统分析

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10、

The Baie exploration area of 10~# coal seam of CBM exploration

白额勘探区10~煤层煤层气初探

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11、

Probing into Construction Technology for Flank Bore in Special Seam

特殊顺层探放水钻孔施工工艺探索

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12、

Failure analysis in unde ( ? ) on the br ( ? ) ak of flash welding seam of rail.

对钢轨闪光焊缝脆断做了失效分析.

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13、

The ultrasonic C-scan testing method is used in detecting electron beam welding ( EBW ) seam.

采用超声C扫描技术检测结构件的 电子束 焊焊缝.

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14、

Through designing and making simulation block for EBW seam , the ultrasonic C-scan testing method is studied.

设计制作电子束焊焊缝模拟对比试样, 利用模拟对比试样研究超声C扫描检测工艺.

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15、

Finally, micro-characteristics of SHS welding joints, formation of seam and shape of crack section are discussed.

讨论了SHS焊接接头显微结构特征, 焊缝的形成过程及断口形貌等等.

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16、

The fine welding seam can be gotten using continuous VEB welding technology.

采用连续式真空电子束焊接技术可以得到优良的焊缝.

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17、

The automatic control system of circular seam process for non-rotated pipeline was developed in the paper.

建立了非旋转管道环缝焊接自动控制系统,并介绍了其系统结构和工作原理.

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18、

The welded seam of the TWB jointed by LBW contained large quantity tiny equiaxial crystal and the heat-affected-zone ( HAZ) was not obvious, the columnar crystals and cellular dendrite near the bond line were grown in the orientation of radiation.

激光拼焊板焊缝中心为大量细小的等轴晶;热影响区不明显,在熔合线附近存在少量沿散热方向生长的柱状晶和胞状树枝晶。

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19、

Natural Desorption Rate and Attenuation Coefficient of Coal Seam Gas and its Significance

煤层瓦斯初始自然解吸速率和衰减系数及其意义

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20、

The main research content as follows: ( 1) Analyzed the basic theory and feasibility of ACFM seam tracking sensor.

具体研究内容如下:(1)对交变磁场焊缝跟踪传感器的基础理论和可行性进行研究。

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