To avoid an oil shortage, more productions must harness natural energy such as solar energy, wind energy and tidal energy.
为避免油料的短缺，更多的生产应该利用自然能源例如太阳能，风能和潮汐能。
Since 1981 UEK Corporation has developed a practical way to harness river, tidal and ocean currents with hydro kinetic turbines.
自1981年以来，UEK公司一直研究一种实用方法，就是利用水流、潮汐、海水等进行水力发电。
Since 1981 UEK Corporation has developed a practical way to harness river, tidal and ocean currents with hydro kinetic turbines.
自1981年以来，UEK公司一直研究一种实用方法，就是利用水流、潮汐、海水等进行水力发电。
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