花膠是大型魚類的魚鰾經過脫水而成的膠狀乾製品，屬於乾海產類，而「鮑參翅肚」中的「肚」正是指花膠。由於魚鰾的堅硬程度及大小各有不同，故曬乾及加工而成的花膠亦有不同，大致分為廣肚、扎膠、筒膠及炸肚四種。第四，處於生理期的女性不宜食用花膠�

雖然花膠本身脂肪含量不高，但吸收太多蛋白質，身體會把這些多餘蛋白質轉化成脂肪。而且花膠不屬於低卡路里食品，故此減肥人士切勿過量進食。也就是較大隻的花膠，售價普遍較昂貴。當中以金錢鰵（又稱黃唇魚）所製的花膠更被稱為花膠極品，而採用鰵魚�

The decay of RF-induced NMR spin polarization is characterized with regard to two separate procedures, Just about every with their very own time constants. One particular system, referred to as T1, is to blame for the lack of resonance depth next pulse excitation. One other method, named T2, characterizes the width or broadness of resonances. Said