invariance and convex loss

例句：

1. 1.The law of invariance is a fundamental principle of physics.
   不变性定律是物理学的基本原理。
2. 2. The stability of the system is determined by the invariance of its equations.
   系统的稳定由其方程的不变性决定。
3. 3.The invariance of the laws of thermodynamics is a cornerstone of modern science.
   热力学定律的不变性是现代科学的基础。
4. 1. The roof of the house is made of convex glass.
   这座房子的屋顶是由凸玻璃制成的。
5. 2. The sun rises over the convex hills.
   太阳从凸形山丘上升起。
6. 3. The convex lens focuses light into a point.
   凸透镜将光线聚焦成一个点。