small volume parenteral少量不经胃肠的(溶液) spun vegetable protein植物纺丝蛋白,植物纤素蛋白 standing venous pressure站立静脉压 snake venom phosphodiesterase蛇毒磷酸二酯酶 selective vagotomy with pyloroplasty选择性幽门成形迷走神经切断术 subperficial vascular plexus浅表血管丛 static volume pressure静态容积压 subviral particle亚病毒微粒