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vitrified clay pipe
hydraul. 加釉黏土管
hydroel.st. 陶土管
vitrified-clay pipe
oil 陶土管
tech. ; 上釉陶土管; 釉面陶; 缸瓦管; 玻化黏土管
vitrified clay pipe
: 1 phrase in 1 subject
Technology1