Research on welding technology of sand mould backing

1、

Each photograph is mounted on a cardboard backing.

每张像片都被裱贴在背衬纸板上。

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2、

Cloth, rubber, cardboard, etc backing.

布、橡胶、纸板等做的背衬。

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3、

New Technology on Flexible Segmented Backing Assemblies Device and Flexible Segmented Idle Roll

柔性节背衬装置及柔性组合式空转辊新技术

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4、

Development of high impedance backing composites for broad-band ultrasonic transducers

超声检测用窄脉冲探头高阻抗背衬的研制

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5、

Cloth, rubber, cardboard, etc backing worked micanite

布、橡胶、纸板等做的背衬.胶合云母板，经加工的

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6、

Determination of the phase-velocity dispersivity of the epoxy-tungsten backing by phase-spectrum analysis

相位谱法测量环氧钨粉背衬的频散特性

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7、

The backing of bearings with greater wall thickness is not copper-plated.

轴承壁较厚的轴承，其背衬不镀铜。

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8、

The material of wall lines and back lines of industrial furnace.

◎工业窑炉壁衬或高温工业窑炉背衬隔热层。

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9、

The resonant characteristics is calculated and analyzed in different backings.

并对不同背衬下的情况进行了计算并分析了谐振特性。

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10、

The sensitivity of sensor decreases with the increasing acoustic impedance.

传感器的灵敏度则随着背衬声阻抗的增加而减小。

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11、

The two hydrophones transfer function method is adopted to measure the reflection coefficients of the material samples under the backing. The measuring frequencies are below 1 kHz and the inside diameter of the tube is 85 mm Long.

该系统采用双水听器传递函数法来测量材料样品在背衬下的低频反射系数，测量频率低于1kHz，管子的内径为85mm。

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12、

It was also found that lining a nonwoven fabric on sliced bamboo veneer would result in decreased surface bond strength for the bamboo veneer overlaid MDF.

测试结果还显示，刨切薄竹背衬无纺布后再与MDF胶合，其表面胶合强度比刨切薄竹直接贴面MDF时低。

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13、

Research and Development of Cast Composition PVC Foaming Lining Blanket

挤塑复合PVC发泡背衬地毯的研制开发

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14、

Student: How did you regain confidence in your? investors and people who gave money to you?

学生；，你是如何赢回，投资者或者投给你资金的人的信心的呢？

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15、

The quick second jump to go back up again on the rare shots they do miss.

他超快的二次起跳速度能让他抢回偶尔投丢的球。

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16、

Before automatical welding, the manual welding is adopted for back sealing, first inside, then outside.

在进行自动焊前要先进行手工焊封底，先焊内侧，后焊外侧；

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17、

To the lower efficiency of back sealing welding, and the character of automatic welding is seriously limited, a kind of special automatic welding machine is designed and manufactured.

针对长输管道自动焊接过程中封底焊环节效率较低，严重制约自动焊高效率的问题，研制完成了一种自动封底专用焊机。

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18、

Indicates back or backing. Use in conjunction with a groove symbol. They judge the side lines and the base lines.

指示底焊或封底焊。与沟符号一起使用。他们判断边线和底线球（界内或蜀外）。

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19、

Application of Inner Hole Half-automatic TIG welding in First Pass of Collector Tube Joint

内孔半自动氩弧焊在集箱管接头封底焊中的应用

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20、

Study on the all-position back sealing welding of pipeline

管道全位置自动封底焊设备及工艺研究

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