The dimension of this physical quantity is length.

这个物理量的量纲是长度。

Digital representation of a physical quantity

物理量的数字表示

A variation of a physical quantity, used to convey data.

用于传递数据的一种物理量的变化(量).

We often use physical quantity to describe the features of an object.

我们常用物理量来描述一个物体的特征.

Energy is all around us, a physical quantity that follows precise natural laws.

我们周围充满了能量，一种严格遵循自然规律的物理质量。

Momentum is a physical quantity measuring the intensity of the mechanical motion of a material body.

动量是度量物体机械运动强弱程度的一个物理量.

A quota is a quantitative restriction that is expressed in terms of either physical quantity or value.

配额是用物品数量或价值表示的数额限制。

The real part of the final expression is understood to represent the physical quantity in question .

最后式子的实部被理解为代表所求的物理量。

Name a physical quantity other than temperature that rends toward equalization when two systems are brought into contact.

试举出温度之外的另一个物理量，当两个系统相接触时，该物理量也趋于均匀。

In nucleus survey, The scaler is a basic equipment which is used to record pulses, correlated with wanted physical quantity.

在核测量中，定标器是基本的测量仪器，用来确定与要测量物理量相关的脉冲计数。