type tests and applications
type tests and applications
型式试验和应用
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The structure, working mechanism and laboratory tests of new type fast makeup casing heads are introduced. Field installation and applications of the casing heads are described in detail.
介绍了新型快装套管头的结构、工作原理及室内试验情况，详细叙述了该套管头的现场安装及应用情况。
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