mechanics
n. 机械学，力学；机制，运作方式；机械部件，运转部件；结构，构成
例句
He has not studied mechanics or engineering.
他没有学习过力学或者工程学。
《柯林斯英汉双解大词典》
Both quantum mechanics and chaos theory suggest a world constantly in flux.
量子力学和混沌理论都指出世界处在不断变化中。
It does happen in quantum mechanics.
它确实发生在量子力学中。
