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reverse tapered string
倒装钻具组合
把加压钻柱安放在垂直井段或井斜角较小井段,用于大斜度井、水平井和大位移井的器械。
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Kahler metric
Kahler potential
Kahramanmaras
Kahun
Kahurangi National Park
Kahuzi-Biega National Park
Kaibara Ekiken
Kaibo-Edition Tripitaka, block-printed edition, Kaibao era, Northern Song Dynasty
Kai Cheong Leung
Kai-Chi Yun
Kaidukongque River
Kaieteur Falls
Kai Feng
Kaifeng
Kaifeng City
Kaifeng city
Kaifeng City Park
Kaifeng drum dance
Kaifeng Erjiaxian Opera Troupe
Kaifeng Iron Pagoda Park
Kaifeng Iron Tower
Kaifeng Museum
Kaifeng New Park
Kaifeng Shi
Kaifu Qu
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