proper vector的用法和样例：
例句
- First, a fixed-dimensional feature vector is generated for each protein sequence using the frequency of the hydropathy blocks occurring in the sequence.
首先，利用蛋白质序列中亲水模块的出现频率，每条蛋白质序列被转换为一个特征向量。 - It outperforms much better than the other two in that it calculates and maximizes the feature vector distance between multi-modal clusters in a hyper-sphere space.
该方法能计算并最大化高维空间中的多模式聚集特征向量距离，由于具有满足三角不等式和非奇性的特性，相对于其他两种方法，它提高了检测性能。
