例句與造句

1. Standard specification for structural silicone sealants
   結(jié)構(gòu)硅密封件的標(biāo)準(zhǔn)規(guī)范
2. Structural silicone sealants for building
   建筑用硅銅結(jié)構(gòu)密封膠
3. It's difficult to find structural silicone sealant in a sentence. 用structural silicone sealant造句挺難的