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The two most common forms are the production or test packer and the inflatable packer.
封隔器两种最常见的形式是生产封隔器或者测试封隔器和膨胀式封隔器。
youdao
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The two most common forms are the production or test packer and the inflatable packer.
封隔器两种最常见的形式是生产封隔器或者测试封隔器和膨胀式封隔器。
youdao