Vocabulary consisting only from characters you are able to read
水力
suirjoku
hydraulic power, water powermix
下ろす
orosu
(1)to take down (e.g. flag), to launch (e.g. boat), to drop, to lower (e.g. ladder), to let (a person) off, to unload, to discharge, (2)to drop off (a passenger from a vehicle), to let (a person) of godan, verb, vtrans
先ほど
sakihodo
some time ago, not long ago, just nowmix