And, along with physical activity, food quality is just as important as quantity, he says.
而且他说，与身体锻炼一样，食物的质量和数量同样重要。
Is the big quantity of exercise moderate for students with bad physical condition?
孩子身体不好，长跑是否运动量太大？
We often use physical quantity to describe the features of an object.
物理量来描述一个物体的特征。
Temperature is a common physical quantity in the scientific research, industrial production and daily life.
温度是科学研究、工业生产及日常生活中经常遇到的一种物理量。
This method doesn't need special card. And it can measure various physical quantity conveniently.
这种采集方法无需在微机中插卡，使用方便灵活，适用于各类物理量的测量。
This method doesn't need special card. And it can measure various physical quantity conveniently.
这种采集方法无需在微机中插卡，使用方便灵活，适用于各类物理量的测量。
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