单词 | drawdown |
释义 | drawdown [`drȯ´dau̇n] GRAPHIC ARTS In inkmaking, a procedure for obtaining a rough estimation of a color shade in which a small sample of ink is placed on a piece of paper and spread with a spatula to yield a thin film of ink. HYDROLOGY The magnitude of the change in water surface level in a well, reservoir, or natural body of water resulting from the withdrawal of water. PETROLEUM ENGINEERING The difference between the static and the flowing bottom-hole pressure. |
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