机能正常 meaning in English

eupraxia
orthergasia

Roots must have good aeration in order to function properly .
为了根系机能正常活动，必须有个良好的通气条件。
1 . normal functioning of body and not get sick easily
1 .身体机能正常，不易生病
To function properly the body must receive adequate proteins , carbohydrates , fats , minerals , vitamins and fluids
要身体机能正常运作，我们需要足够蛋白质、碳水化合物、脂肪、矿物质、维他命和流质。
In order to fuel our body and sustain body functions , everybody should follow a balanced diet which is consisted of but not limited to the following major components
要为身体提供足够能量，并维持机能正常，我们应该注意均衡饮食，以下是一些要点：