... 高频振动筛 high-frequency shale shaker 高强度套管 high-strength casing 高强度油管 high-strength tubing ...
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At lower annealing temperature obtain high strength and high yield ratio showed cyclic softening feature easily. That is detrimental to the using life of coiled tubing.
较低退火温度获得高强度、高屈强比易表现出循环软化特征，不利于提高连续油管的疲劳寿命。
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