Bedeutungen
[das] 套管
❬hr color=#336cc size=1 /❭
[das] 套管。
penetration sleeve, casing pipe, sleeve pipe, drill casing, well casing, wall bushing, casing joint, casing tube
❬hr color=#336cc size=1 /❭
[das] 套管。
penetration sleeve, casing pipe, sleeve pipe, drill casing, well casing, wall bushing, casing joint, casing tube

Substantiv, n