Static strain testing method which tests mainly strain parameter is a main method of the derrick dependability assessment at present.
以实测应变参数为主的静态应变测试法是目前对现役井架可靠性评估的主要方法。
Static strain testing method which tests mainly strain parameter is a main method of the derrick dependability assessment at present.
以实测应变参数为主的静态应变测试法是目前对现役井架可靠性评估的主要方法。
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