求翻译：钾在人体中的作用是控制肌肉、神经系统和肾的活动，心脏为保持正常搏动，也需要适量的钾。于钙质结合，则具有降低血压的功效。是什么意思？

The role of potassium in the body is to control the muscles, nervous system and kidney activity, in order to maintain normal heart beat, also need the right amount of potassium. In calcium binding, it has a lower blood pressure.

The role of the potassium in the human body is to control muscle and the nervous system, heart and kidney in order to maintain normal activities impulso, also need to be an adequate number of potassium. In conjunction with calcium, the blood pressure lowering of effectiveness.

The potassium is controls the muscle, the nervous system and the kidney activity in human body function, the heart for the maintenance normal putsation, also needs the right amount potassium.In calcareous union, then has reduces the blood pressure the effect.

Role of potassium in the body is to control the activity of muscles, nervous system and kidney, heart, to keep a regular beat, also needs the right amount of potassium. In the combination of calcium, it has a reduced effectiveness of blood pressure.

Role of potassium in the body is to control the activity of muscles, nervous system and kidney, heart, to keep a regular beat, also needs the right amount of potassium. In the combination of calcium, it has a reduced effectiveness of blood pressure.