By using polydimethylsiloxane containing epoxy groups as basegum, the compounds containing amino groups as crosslinking reagent, a new addition type curable silicone rubber were prepared.
以含环氧基聚二甲基硅氧烷为基胶，以胺类化合物为固化交联剂进行了新型加成型硫化硅橡胶的研究。
2
A higher number of deepened periodontal pockets (infection of the gum around the base of the tooth) had a 53 percent increased risk of heart attack compared to those with the fewest pockets.
牙周袋（牙根周围牙龈感染）多的比牙周袋最少的心脏病风险高53%；
3
The gum's flavorings, sweeteners and softeners are all no match for human digestion. It's the gumbase that sticks around.