sinking by boring的意思|示意
美 / ˈsiŋkiŋ bai ˈbɔ:riŋ /
英 / ˈsɪŋkɪŋ baɪ ˈbɔrɪŋ /
钻井法凿井
sinking by boring相关短语
1、 shaft sinking by boring 钻井法凿井