physical measure meaning in English

实物计量

Symmetry of physical measure in center of mass system
质心系中物理量的对称性
The key features of the international system are decimalization , a system of prefixes , and a standard defined in terms of an invariable physical measure
国际制度的主要特点是采用了十进制法、字首体系、以不变的物理度量方式解释的标准。
Again , physical measures such as secured areas , secure deletion of data , and accounting procedures for confidential information need to be considered , but are not covered here
此外，物理上的措施也需要考虑，比如安全区域、数据的安全删除，以及机密信息的会计程序，不过本文并不涉及这些。
The integral calculus formula is deduced , in which the first derivative of physical measures of system with respect to time equals the partial derivative of physical measures of control field to time plus clear flux of physical measures passing the control line within unit time
推导出交通流系统所具有的物理量对时间的全导数的积分公式，即系统内物理量对时间的全导数等于控制域内该物理量对时间的偏导数与单位时间经过控制线的该物理量的通量之和。