vascular tone的用法和樣例：
例句
- Adrenergic inhibitors selectively reduce sympathetic tone.
腎上腺素抑制劑有選擇地降低交感神經(jīng)的緊張度。 - The heart rate and venous tone were controlled by high-pressure receptor baroreflex, while the peripheral resistance was controlled by high- and low-pressure receptor baroreflexes.
其中，心率和靜脈緊張度受動(dòng)脈壓力感受器反射控制，而外周阻力則同時(shí)受動(dòng)脈壓力感受器和心肺壓力感受器的反射控制。
