socket and spigot joint
socket and spigot joint
[水利英汉词典]
socket and spigot jointn.承窝接合,插口接合
是什么意思,socket and spigot joint的解释,socket and spigot joint的翻译
socket and spigot joint
[水利英汉词典]
socket and spigot joint是什么意思,socket and spigot joint的解释,socket and spigot joint的翻译