In order to prevent failure of packer and provide theoretical basis for selection of unsetting shear pin, the unsetting force of packer must he calculated in design.
为了防止封隔器在工作过程中失效，并为
封剪钉（或剪环）的
供理论依据，必须进行封力的设计计算。
词条纠错
X
n. 防沉扶壁
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相似单词
unseriousness, unserviceability, unserviceable, unserviced, unset, unsetting, unsettle, unsettled, unsettlement, unsettling,
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