improved entropy method

• 改进的熵值法

improved entropy method的用法和样例：

例句

1. An intact egg has lower entropy than a shattered one.
   比起一颗破蛋来说，一颗完整的蛋的熵值要更低。
2. They can adopt conformations which lead to maximum entropy.
   他们可以采取有最大熵值的构象。