我想搞个科研课题，你能告诉一下哪些是需要解决的最前沿的问题吗？你有兴趣参与吗？
我想搞个科研课题，你能告诉一下哪些是需要解决的最前沿的问题吗？你有兴趣参与吗？
22楼
I think you should pay attention to:
1. Cost-effective of water treatment. This is the difference:
Turbidity from Sedimentation, Turbidity from Filter
US
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23楼
ok,thanks.
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