There are such types of pile combs as silver-mercury, thread compound, mould metal, combination. The thesis also discusses the making and the clinical application.
介绍了银汞合金桩核、螺纹桩复合树脂桩核、铸造金属桩核、组合式桩核的制作方法和临床应用。
The sea1ing ability of API connections mainly depends on the machining parameters of connections themselves, but the sealing aid of thread compound can not be overlooked.
螺纹接头的密封性主要取决于螺纹的加工参数，但螺纹脂对螺纹接头的辅助密封作用不应被忽略。
The sea1ing ability of API connections mainly depends on the machining parameters of connections themselves, but the sealing aid of thread compound can not be overlooked.
螺纹接头的密封性主要取决于螺纹的加工参数，但螺纹脂对螺纹接头的辅助密封作用不应被忽略。
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