しくつこう 試掘坑 LinksSentence search for 試掘坑Sentence search for しくつこうSentence search for 試掘孔Kanji details for 試, 掘 and 坑Edit in JMdict Noun1. test pit; pilot tunnelOther forms試掘孔 【しくつこう】 Discussions Log in to talk about this word.