宇航员需要一种能够将水进行净化是手段，从而防止细菌和污物带来的高风险。
Astronauts needed a way to cleanse water they take up into space, since bacteria and sickness would be highly problematic.
在固定化菌净化养殖水的研究中发现，固定化光合细菌对养殖水的净化能力大大优于悬浮态菌。
The results revealed that the immobilized PSB has much more superiority to purify aquaculture water than the suspended free ones.
在固定化菌净化养殖水的研究中发现，固定化光合细菌对养殖水的净化能力大大优于悬浮态菌。
The results revealed that the immobilized PSB has much more superiority to purify aquaculture water than the suspended free ones.
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