套筒接合 meaning in Chinese

bell-and-spigot joint
box joint
butt and collar joint
butt-and-collar joint
female joint
muff coupling
muff joint
sleeve joint
socket and spigot joint
socket and-spigot joint
spigot and faucet joint
spigot and socket joint
spigot and-faucet joint
spigot and-socket joint
telescope joint
telescopic joint
thimble joint