Symbol S For a closed thermodynamic system, a quantitative measure of the amount of thermal energy not available to do work.

符号 S 熵：在封闭的热力体系中不能做功的一定数量的热能的计量单位

A measure of the disorder or randomness in a closed system.

随机计量单位：在封闭体系中对无序和随机的计量单位

A measure of the loss of information in a transmitted message.

转送信息缺损值：在转送信息中的信息缺损值

A hypothetical tendency for all matter and energy in the universe to evolve toward a state of inert uniformity.

退降：宇宙中物质和能量降值惰性均匀状态的一种假设性趋势

Inevitable and steady deterioration of a system or society.

恶化，败坏：系统或社会不可避免的无法逆转的恶化或败坏

熵值，即熵的数值。符号s，恒大于0。