Can be relaxed to take appropriate fill tube plug seal clearance.

可采取适当放松填料、清理封管堵塞.

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To study the sealing up method of intravenous trocar.

目的:探讨静脉留置套管针封管方法.

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Constitution: By attachment, drive pipe, bottle cap, bottle body, dip pipe, support and suspension hook constitution.

构成: 由接头 、 导管 、 瓶盖 、 瓶体 、 水封管 、 支架和挂钩构成.

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The present invention relates to a method for well cementing assisted inflatable external packer.

本发明涉及一种用水泥浆胀封管外封隔器辅助固井的方法.

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In that case, special stuffing tube will be used to keep water tightness.

那样的话, 需要安装专用的密土封管来确保水密.

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