Vocabulary consisting only from characters you are able to read
五日
いつか
five days, the fifth day (of the month)jlpt5, toki
校正
こうせい
(1)proofreading, correction of press, (2)calibration suru
大して
たいして
(not so) much, (not) verymix
水力
すいりょく
hydraulic power, water powermix