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1·This welding backing is used with all one-side processes. Especially for those which do not demand back bead cleaning.

本衬垫可用于各种单面焊接工艺的位置，特别适用于不一定要求封底焊道的场合。

2·It is necessary to extract molten pool geometrical parameters in real time or to extract back bead width off-line either in seam tracking or in penetration control.

不论熔透控制还是焊缝跟踪，都需要实时或离线提取焊接熔池正面或反面的几何参数。

3·You can imagine a bead with a wire going through it and the bead can only slide back and forth.

你可以想象一个有金属丝穿过的珠子而且这个珠子只能前后滑动。

4·It easy to occur defect on the back of bead in pressure pipe TIG welding, which can be solved by using the anti, direction wire feeding method successfully.

压力管道TIG焊在焊接中焊道背部易出现缺陷，用反向送丝的方法成功地解决了这一问题。

5·Roman blinds: Looped bead chains and exposed inner cords on the back of Roman blinds can present an entanglement or strangulation hazard to young children if they are placed around their neck.

罗马帘：罗马帘背面的环形珠链和暴露在外的内置拉绳，如果儿童将其缠在脖子上，则会造成窒息的危害。

6·Fatigue life is able to increase more than 90 % as using technique that makes bead forming on the back side.

采用背面成形技术使膜盒的疲劳寿命提高90%以上。

7·Eventually the light swelled so that all the lines of the varnished bead board walls stood clear, and Inman could cock back on the chair's hind legs and count the flies on the ceiling.

最后，屋内开始亮堂起来，抛光墙板上的接缝也清晰可辨。英曼翘起椅子前腿，仰着头数天花板上的苍蝇。

8·The utility model is characterized in that a single micro glass bead layer is coated on the peripheral edges of the front side and the back side of the traffic safety satchel.

其特征是在书包正面和背面四周边沿上涂覆单层的微型玻璃珠层。

9·Swallows return should be back to rain, the first twelve lines on the bead curtain.

雨来双燕归应早，先上珠帘十二行。