Accessory cord is static, or very low stretch.

辅绳通常是静力绳，或者延展性非常小。

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Stretch the grid to the opposite end of the next morning's first hour low (or high).

将栅格延伸到另一端的次日早晨的第一个小时低点(或者高点)。

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Stretch when the low back pain: for the poor sitting posture.

伸懒腰时腰痛：多为坐姿不良。

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Stretch when the low back pain: for the poor sitting posture.

伸懒腰时腰痛：多为坐姿不良。

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