单词	junior coupling
释义	junior coupling 辅助管箍
随便看	concrete safety barrier concrete safety guards concrete sample concrete sandwich panels concrete sandwich two-way panel concrete saw concretes basin concrete scaling concrete scarifier machine concrete science concretes crack concrete scraper concrete screed concrete seborrhea concrete secondary containment concrete seepage-prevention wall Concrete seepage-proof wall concrete segment concrete segments concrete segments of subway tunnel concrete segregation concrete seismic block concrete self-anchored suspension bridges concrete self anchoring cable bridge concrete self-waterproofing