1·But many siphons are needed for each lake, so the cost of de-gassing is high.
但是每个湖泊需要很多的虹吸管，因此提取这些气体的费用很高。
2·Pieter Hoff says the nice thing about the siphons is that, once collected, the water is not able to evaporate anymore.
彼得·霍夫称这种虹吸管的好处是，一旦收集了水，这些水就不会再蒸发。
3·These are the Wrackspurt siphons - to remove all sources of distraction from the thinker's immediate area.
这是骚扰虻虹吸管——可将一切干扰思想者的周围区域排除。