Read Edit View history 套管 tàoguǎn casing Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 套管 · tàoguǎn · casing 2026/03/04 套管 tàoguǎn casing pipe casing or protective sleeve 这种套管可以有效保护电缆不受损坏。 noun created sense Mar 4, 2026, 02:25 AM