Most deep-sea faunas rely for food on particulate matter, ultimately derived from photosynthesis, falling vent would dwarf any contribution from advection.
大多数深海动物依靠颗粒物质作为食物，这些颗粒物质最终来自于光和作用，下降的排放口会使平流的作用相形见绌。
It was an extraordinary voyage. Occasionally, we had an escort of dolphins, and then, at one point, the sea seemed to boil as we sailed across an underwater vent.
这是一次非同寻常的航行，先是有海豚伴我们航行，然后我们驶过了海底的火山口，海水翻滚着像煮沸了一样。
Even if it is sea water, pay careful attention to prevent an overflow from the air vent.
即使是海水也要注意不能从透气管中溢出。
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