Usted buscó: adrenergic blocker (Inglés - Chino (Simplificado))

blocker
屏蔽仪

signal blocker
信号屏蔽仪

ephedrine is both an α- and a β-adrenergic agonist and enhances the release of norepinephrine from sympathetic neurons.
麻黄碱既是一种－肾上腺素能显效药，也是一种－肾上腺素能显效药，可增强从交感神经元中释放去甲肾上腺素。

(a) the activities of armed gangs, "road blockers " and rebels in the north of the country, who committed abuses against civilians;
(a) 武装团伙、车匪路霸和叛乱分子在北部活动，对平民实施暴行；