英语语法分析

Methods: High dosage of noradrenalin was given by intravenous drip for many times.

方法：采用多次静脉输注大剂量去甲肾上腺素造成充血性心肌病动物模型。

Noradrenalin regulates energy levels, helping you to get up in the morning and sleep at night.

降肾上腺素调节精力，使你能够在晚上入睡早晨醒来。

Objective: To investigate the release of myocardial noradrenalin during acute myocardial hibernation.

目的：探讨急性心肌冬眠时心脏去甲肾上腺素的释放情况。