楼上就没好好去查
飞利浦网站上对S-bag的定义为
s-bag is the standard disposable st bag that is widely available and easily recognizable by its logo. It is suitable for bag vacuum cleaners of Philips, Electrolux, AEG, Volta, and Tornado.
这个s-bag还是个注册商标，人家要把这种除版尘袋注册成这名。
如果权一定要个全称的话，把s看成standard