英语词汇“Reverse circulation or kelly bar drilling”的翻译、意思、用法、释义-英汉汉英双解词典

单词	Reverse circulation or kelly bar drilling
释义	Reverse circulation or kelly bar drilling 反循环与旋挖成孔
随便看	stock box stockboy stock boy stock-boy stockboys stock brail stockbreading stock break stock breakdown stockbreeder stock breeder stockbreeders stock breeders stockbreeding stock breeding stock-breeding stockbreeding machine stockbreeding mechanization stockbreeding on grassland stockbreeding pollution Stockbreeding production model stock breeding;seed stock breeding stock brick Stockbridge stockbridge damper