forward alternately tension method 交替前进张拉法
In addition, there is a certain recovery of deformation for pile body and anchor steel under the forward tension condition after unloading.
另外，卸载后，在正的受拉状态下，对于桩体和锚杆钢筋，变形均有一定程度的恢复。
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Demand should outweigh supply going forward and tension in the Middle East leave risk to the upside.
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