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更新時(shí)間:2025.01.04
單封隔器抽油管柱受力變形分析

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分析了直井中單封隔器抽油管柱在坐封前后的受力、變形狀態(tài)。提出了一種準(zhǔn)確計(jì)算封隔器坐封前后管柱變形、封隔器坐封高度及管柱附件位置的方法,對(duì)設(shè)計(jì)工藝管柱結(jié)構(gòu)、現(xiàn)場(chǎng)校核管柱附件深度具有重要意義。

高壓油管高壓油管總成

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relationship betwee n Gover nment a nd busi ness. The "two sessi ons", General Secretary of "Pro", "clear" the w ord succinctly sum marize d the new relationship betwee n Gover nment and busi ness, as pure politics, resha ping the political relati onship spe cified in t he dire ction. Distri ct leader s in ha ndl ing politi cal and busi ness relati ons, engage i n trading power for money, a nd fin

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