Check for wrist or finger movement, there should be none with back tension.

检查手腕或手指的活动，那不应有背部紧张的情况。

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Then use it throughout the day to relieve back tension.

然后，在一整天用它来缓解背部紧张度。

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The computed results of the transverse distributions of front and back tension stress...

前、后张力横向分布的计算结果与实验结果吻合较好。

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Production of the material includes several stages: silk floss is spun into yarn by hand, with patterns added by hand-tying bundles of yarn before dyeing the yarn with indigo, then the silk is woven using a back-tension loom.

UNESCO: Culture

The Venezuelan Jewish community traces its roots back more than 200 years and has no history of tension with the local population.

CENTERFORSECURITYPOLICY: Echoes of the ��30s in Caracas

Andy Roddick has lowered his tension gradually from 63 and 64 pounds a few years back to 55 and 56 pounds at the U.S. Open, according to Prokes, his stringer.

WSJ: Roger Federer: With Tennis Rackets, He Strings Them Loose