1型背筋机适用于棉布、汗布、羊绒、羊呢、皮质等手套装饰缝，有二针和四针。
Model GG0807-1 Dorsal rib machine, Adaptable to decorative sewing glove materials including cotton cloth, sweat cloth, cashmere, woolen fabric, leather etc, with 2-needle or 4-needle option.
孩子们正在后院玩跳背游戏和翻筋头。
The kids were playing leapfrog and doing somersaults in the backyard.
如何用腿筋运动来改善下背和膝盖问题。
How to use a hamstring movement to improve the lower back and knee problems.
如在路堤加筋、台背路堤填土加筋、岩石边坡路基防护和路面裂缝的防治等。
For example, it can apply to embankment reinforcement and embankment fill and rock slope defence and pavement crack prevention etc.
如在路堤加筋、台背路堤填土加筋、岩石边坡路基防护和路面裂缝的防治等。
For example, it can apply to embankment reinforcement and embankment fill and rock slope defence and pavement crack prevention etc.
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