把呼吸速率与其他物理变量结合起来可以更加有效地控制s BR，提高其运行效率。
If combining respiration rate with other physical variables, the control of operation time in SBR is more effective.
它们有意识地通过提高街灯和建筑的能源使用效率降低了能源使用量，其运行的公共设施具有很高的能源使用效率。
They have consciously brought down their energy use through more efficient street lighting and buildings and being energy efficient in the utilities they run.
氧气运输系统只需铁原子便可运行，但血色素提供的蛋白质“笼状”结构能够大大提高其效率。
An oxygen transport system is possible with just the iron atoms, but it is very much more effective with the protein "cage" the structure of hemoglobin provides.
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