a. + dam >>共 165
hydroelectric 18.62%
new 4.99%
earthen 4.69%
small 3.96%
massive 3.08%
huge 2.93%
major 2.64%
big 2.49%
large 2.49%
smaller 2.35%
hydroelectric + n. >>共 34
dam 23.78%
plant 22.10%
power 18.54%
project 10.30%
utility 4.12%
station 3.75%
generator 3.37%
facility 1.50%
system 1.31%
development 0.94%
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