| 释义 |
wellheads是wellhead的复数 n. derrick,rig,gantry,oil platform,frame n. | 1. the place where a spring emerges from the earth or a stream begins 2. a principal or primary source of something 3. a structure or enclosure at the upper end of a water, oil, or natural-gas well, e.g. one containing pipes and pumping equipment |
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