1)tension type packer,张力型封隔器2)tension packer,张力封隔器3)tension-set packer,张力坐封封隔器4)expandable packer,扩张式封隔器5)packer of hearing,热力封隔器6)downhole hydraulic packer,水力封隔器
用法例句
The improvement of expandable packer equipped with sliding gear was made to implement one operation of seal-sitting and detection using one string with bridge-plug.
