另外，同一研究中，所有的患者都进行了多巴酚丁胺负荷试验，结果都是阴性的：IMA无论是在正常状态，最大负荷试时还是在负荷后一小时都保持不变。
In addition, in the same study, all patients were evaluated with dobutamine stress echo, which was negative in all; IMA levels were unchanged at baseline, peak stress and 1 hour after stress.31.
基本负荷基本负荷是指建筑负荷需求量中不变的那一部分，是构成负荷需求曲线的基数。
Base load base load is that portion of a building load demand which is constant. It is the "base" of the building demand curve.
在环境负荷不变条件下，运用控制方程求得的万元产值用水量无法满足循环经济的需求。
Under the constant condition of environmental load, water consumption of ten thousand Yuan output value is got from the control equation.
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