| 单词 | pressure depth | 
| 释义 | pressure depth [`presh·ǝr ´depth]  OCEANOGRAPHY The depth at which an ocean sample was taken, as inferred from the difference in readings on protected and unprotected thermometers on the sampler; the higher reading is on the unprotected thermometer due to the effect of pressure on the mercury column at the sampling depth.  | 
	
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