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Terms for subject Navigation containing 全的 | all forms
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全部放弃的底座back scuttled
地下控制的井下安全阀subsurface controlled subsurface safety valve
导航卫星的计时与测距全球定位系统navigation satellite timing and ranging global positioning system
带有井下安全阀的短管柱short string with a subsurface safety valve

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