affine invariants的用法和样例：
例句
- A new set of affine moment invariants was used to test ify the formula derived in the paper.
一组新的由低阶中心矩构成的仿射不变量验证了本文推导的正确性。 - The paper shows that the revised depth is of affine invariant besides the properties owned by the original depth.
证明了新的数据深度在保持原深度其他性质的基础上，把原深度的正交不变性改进为仿射不变。
