A plug of glass wool held in the neck of a polyethylene funnel.
玻璃棉塞支承着聚乙烯漏斗的颈部。
Glass connection, tubing constant pressure connection, single constant connection and tubing blanking plug are main tubing internal seal tool.
玻璃接头、油管定压接头、油管单向定压接头和油管堵塞器是目前各油气田使用较普遍的油管内密封工具。
The end of the injection tube is provided with a dispersion device such as a porous plug or fritted glass.
注射管的末端提供有分散装置例如多孔塞或烧结玻璃。
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