open hole straddle packer test string【油气】
【建筑】打包机，插头
packer, plug
暂无补充释义。
相关词条
packer
automatic packaging machine【包装】;automatic packaging unit【包装】;automatic packer【包装】
packer
gauze packer
inflatable packer test string【油气】
upper compacted cloth packer
film vacuum combination packer