目前前悬挂装置主要型式有伸缩管式和杠杆式，后悬挂装置主要型式是摇臂式。
At present, the main front suspensions are of telescopic type and lever type, while the rear is of swing arm type.
在套管柱安装后在放置套管悬挂器的井口装置中的部件或型面。
A wellhead component or a profile formed in wellhead equipment in which the casing hanger is located when a casing string has been installed.
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